34728564 has 24 divisors (see below), whose sum is σ = 87267040. Its totient is φ = 10685664.

The previous prime is 34728553. The next prime is 34728593. The reversal of 34728564 is 46582743.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111154 + ... + 111465.

Almost surely, 2^34728564 is an apocalyptic number.

It is an amenable number.

34728564 is an abundant number, since it is smaller than the sum of its proper divisors (52538476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34728564 is a wasteful number, since it uses less digits than its factorization.

34728564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222639 (or 222637 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 34728564 is about 5893.0946030078. The cubic root of 34728564 is about 326.2588306648.

The spelling of 34728564 in words is "thirty-four million, seven hundred twenty-eight thousand, five hundred sixty-four".