34000921 has 4 divisors (see below), whose sum is σ = 34013200. Its totient is φ = 33988644.

The previous prime is 34000913. The next prime is 34000927. The reversal of 34000921 is 12900043.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 34000921 - 2³ = 34000913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34000927) 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, 190 + ... + 8248.

It is an arithmetic number, because the mean of its divisors is an integer number (8503300).

Almost surely, 2^34000921 is an apocalyptic number.

It is an amenable number.

34000921 is a deficient number, since it is larger than the sum of its proper divisors (12279).

34000921 is an equidigital number, since it uses as much as digits as its factorization.

34000921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12278.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 34000921 is about 5831.0308694089. The cubic root of 34000921 is about 323.9641052802.

Adding to 34000921 its reverse (12900043), we get a palindrome (46900964).

The spelling of 34000921 in words is "thirty-four million, nine hundred twenty-one", and thus it is an aban number.