34972391 has 4 divisors (see below), whose sum is σ = 35083032. Its totient is φ = 34861752.

The previous prime is 34972387. The next prime is 34972393. The reversal of 34972391 is 19327943.

34972391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34972391 - 2² = 34972387 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 (34972393) 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 in 3 ways as a sum of consecutive naturals, for example, 54845 + ... + 55478.

It is an arithmetic number, because the mean of its divisors is an integer number (8770758).

Almost surely, 2^34972391 is an apocalyptic number.

34972391 is a deficient number, since it is larger than the sum of its proper divisors (110641).

34972391 is a wasteful number, since it uses less digits than its factorization.

34972391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110640.

The product of its digits is 40824, while the sum is 38.

The square root of 34972391 is about 5913.7459363757. The cubic root of 34972391 is about 327.0205980410.

The spelling of 34972391 in words is "thirty-four million, nine hundred seventy-two thousand, three hundred ninety-one".