34010021 has 4 divisors (see below), whose sum is σ = 34058700. Its totient is φ = 33961344.

The previous prime is 34009991. The next prime is 34010023. The reversal of 34010021 is 12001043.

It is a happy number.

34010021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12001043 = 197 ⋅60919.

It can be written as a sum of positive squares in 2 ways, for example, as 14737921 + 19272100 = 3839^2 + 4390^2 .

It is a cyclic number.

It is not a de Polignac number, because 34010021 - 2⁶ = 34009957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34009984 and 34010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34010023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23276 + ... + 24693.

It is an arithmetic number, because the mean of its divisors is an integer number (8514675).

Almost surely, 2^34010021 is an apocalyptic number.

It is an amenable number.

34010021 is a deficient number, since it is larger than the sum of its proper divisors (48679).

34010021 is an equidigital number, since it uses as much as digits as its factorization.

34010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48678.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 34010021 is about 5831.8111251994. The cubic root of 34010021 is about 323.9930045993.

Adding to 34010021 its reverse (12001043), we get a palindrome (46011064).

The spelling of 34010021 in words is "thirty-four million, ten thousand, twenty-one".