34639923 has 4 divisors (see below), whose sum is σ = 46186568. Its totient is φ = 23093280.

The previous prime is 34639921. The next prime is 34639939. The reversal of 34639923 is 32993643.

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

It is not a de Polignac number, because 34639923 - 2¹ = 34639921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34639921) 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, 5773318 + ... + 5773323.

It is an arithmetic number, because the mean of its divisors is an integer number (11546642).

Almost surely, 2^34639923 is an apocalyptic number.

34639923 is a deficient number, since it is larger than the sum of its proper divisors (11546645).

34639923 is a wasteful number, since it uses less digits than its factorization.

34639923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11546644.

The product of its digits is 104976, while the sum is 39.

The square root of 34639923 is about 5885.5690464049. The cubic root of 34639923 is about 325.9810137361.

The spelling of 34639923 in words is "thirty-four million, six hundred thirty-nine thousand, nine hundred twenty-three".