52728678 has 16 divisors (see below), whose sum is σ = 117174960. Its totient is φ = 17576208.

The previous prime is 52728653. The next prime is 52728691. The reversal of 52728678 is 87682725.

It is a Curzon number.

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, 488175 + ... + 488282.

It is an arithmetic number, because the mean of its divisors is an integer number (7323435).

Almost surely, 2^52728678 is an apocalyptic number.

52728678 is an abundant number, since it is smaller than the sum of its proper divisors (64446282).

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

52728678 is a wasteful number, since it uses less digits than its factorization.

52728678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976468 (or 976462 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 52728678 is about 7261.4515077910. The cubic root of 52728678 is about 374.9864955137.

The spelling of 52728678 in words is "fifty-two million, seven hundred twenty-eight thousand, six hundred seventy-eight".