85035978 has 12 divisors (see below), whose sum is σ = 184244658. Its totient is φ = 28345320.

The previous prime is 85035947. The next prime is 85036031. The reversal of 85035978 is 87953058.

85035978 is a `hidden beast` number, since 8 + 50 + 3 + 597 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65561409 + 19474569 = 8097^2 + 4413^2 .

It is a super-2 number, since 2×85035978² = 14462235108832968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2362093 + ... + 2362128.

Almost surely, 2^85035978 is an apocalyptic number.

85035978 is an abundant number, since it is smaller than the sum of its proper divisors (99208680).

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

85035978 is a wasteful number, since it uses less digits than its factorization.

85035978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724229 (or 4724226 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 85035978 is about 9221.4954318700. The cubic root of 85035978 is about 439.7449934214.

The spelling of 85035978 in words is "eighty-five million, thirty-five thousand, nine hundred seventy-eight".