34639423 has 36 divisors (see below), whose sum is σ = 45061920. Its totient is φ = 26522496.

The previous prime is 34639393. The next prime is 34639433. The reversal of 34639423 is 32493643.

It is a de Polignac number, because none of the positive numbers 2^k-34639423 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 (34639433) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 389163 + ... + 389251.

It is an arithmetic number, because the mean of its divisors is an integer number (1251720).

Almost surely, 2^34639423 is an apocalyptic number.

34639423 is a deficient number, since it is larger than the sum of its proper divisors (10422497).

34639423 is a wasteful number, since it uses less digits than its factorization.

34639423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 156 counting only the distinct ones).

The product of its digits is 46656, while the sum is 34.

The square root of 34639423 is about 5885.5265694753. The cubic root of 34639423 is about 325.9794453022.

The spelling of 34639423 in words is "thirty-four million, six hundred thirty-nine thousand, four hundred twenty-three".