34431397 has 48 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 23886720.

The previous prime is 34431373. The next prime is 34431403. The reversal of 34431397 is 79313443.

It is a happy number.

It is not a de Polignac number, because 34431397 - 2⁷ = 34431269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34431337) 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 47 ways as a sum of consecutive naturals, for example, 583554 + ... + 583612.

It is an arithmetic number, because the mean of its divisors is an integer number (1005480).

Almost surely, 2^34431397 is an apocalyptic number.

It is an amenable number.

34431397 is a deficient number, since it is larger than the sum of its proper divisors (13831643).

34431397 is a wasteful number, since it uses less digits than its factorization.

34431397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 143 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 34431397 is about 5867.8272810300. The cubic root of 34431397 is about 325.3255814195.

The spelling of 34431397 in words is "thirty-four million, four hundred thirty-one thousand, three hundred ninety-seven".