8527978402 has 16 divisors (see below), whose sum is σ = 12871094400. Its totient is φ = 4237685200.

The previous prime is 8527978369. The next prime is 8527978439. The reversal of 8527978402 is 2048797258.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8527978402.

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, 225777 + ... + 260827.

It is an arithmetic number, because the mean of its divisors is an integer number (804443400).

Almost surely, 2^8527978402 is an apocalyptic number.

8527978402 is a deficient number, since it is larger than the sum of its proper divisors (4343115998).

8527978402 is a wasteful number, since it uses less digits than its factorization.

8527978402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35801.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 8527978402 is about 92347.0541056941. The cubic root of 8527978402 is about 2043.0642787729.

The spelling of 8527978402 in words is "eight billion, five hundred twenty-seven million, nine hundred seventy-eight thousand, four hundred two".