34051621 has 4 divisors (see below), whose sum is σ = 34319872. Its totient is φ = 33783372.

The previous prime is 34051541. The next prime is 34051627. The reversal of 34051621 is 12615043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12615043 = 7 ⋅1802149.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34051621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34051592 and 34051601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34051627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133935 + ... + 134188.

It is an arithmetic number, because the mean of its divisors is an integer number (8579968).

Almost surely, 2^34051621 is an apocalyptic number.

It is an amenable number.

34051621 is a deficient number, since it is larger than the sum of its proper divisors (268251).

34051621 is a wasteful number, since it uses less digits than its factorization.

34051621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268250.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 34051621 is about 5835.3766802153. The cubic root of 34051621 is about 324.1250501650.

Adding to 34051621 its reverse (12615043), we get a palindrome (46666664).

The spelling of 34051621 in words is "thirty-four million, fifty-one thousand, six hundred twenty-one".