34346021 has 4 divisors (see below), whose sum is σ = 34396992. Its totient is φ = 34295052.

The previous prime is 34346003. The next prime is 34346023. The reversal of 34346021 is 12064343.

It is a happy number.

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: 12064343 = 457 ⋅26399.

It is a cyclic number.

It is not a de Polignac number, because 34346021 - 2¹⁸ = 34083877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34346023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24461 + ... + 25826.

It is an arithmetic number, because the mean of its divisors is an integer number (8599248).

Almost surely, 2^34346021 is an apocalyptic number.

It is an amenable number.

34346021 is a deficient number, since it is larger than the sum of its proper divisors (50971).

34346021 is an equidigital number, since it uses as much as digits as its factorization.

34346021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50970.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 34346021 is about 5860.5478412858. The cubic root of 34346021 is about 325.0564667173.

It can be divided in two parts, 343 and 46021, that added together give a palindrome (46364).

The spelling of 34346021 in words is "thirty-four million, three hundred forty-six thousand, twenty-one".