34625021 has 2 divisors, whose sum is σ = 34625022. Its totient is φ = 34625020.

The previous prime is 34625009. The next prime is 34625057. The reversal of 34625021 is 12052643.

34625021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30580900 + 4044121 = 5530^2 + 2011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34625021 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34625221) 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 as a sum of consecutive naturals, namely, 17312510 + 17312511.

It is an arithmetic number, because the mean of its divisors is an integer number (17312511).

Almost surely, 2^34625021 is an apocalyptic number.

It is an amenable number.

34625021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34625021 is an equidigital number, since it uses as much as digits as its factorization.

34625021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 34625021 is about 5884.3029323787. The cubic root of 34625021 is about 325.9342616515.

Adding to 34625021 its reverse (12052643), we get a palindrome (46677664).

The spelling of 34625021 in words is "thirty-four million, six hundred twenty-five thousand, twenty-one".