34878564 has 36 divisors (see below), whose sum is σ = 100761024. Its totient is φ = 9965232.

The previous prime is 34878553. The next prime is 34878593. The reversal of 34878564 is 46587843.

34878564 is a `hidden beast` number, since 3 + 4 + 87 + 8 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68952 + ... + 69455.

Almost surely, 2^34878564 is an apocalyptic number.

It is an amenable number.

34878564 is an abundant number, since it is smaller than the sum of its proper divisors (65882460).

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

34878564 is a wasteful number, since it uses less digits than its factorization.

34878564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138424 (or 138419 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 34878564 is about 5905.8076501017. The cubic root of 34878564 is about 326.7278829234.

The spelling of 34878564 in words is "thirty-four million, eight hundred seventy-eight thousand, five hundred sixty-four".