78868000 has 48 divisors (see below), whose sum is σ = 193788504. Its totient is φ = 31545600.

The previous prime is 78867983. The next prime is 78868043. The reversal of 78868000 is 86887.

It can be written as a sum of positive squares in 4 ways, for example, as 7160976 + 71707024 = 2676^2 + 8468^2 .

It is a super-2 number, since 2×78868000² = 12440322848000000, which contains 22 as substring.

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, 5859 + ... + 13858.

Almost surely, 2^78868000 is an apocalyptic number.

It is an amenable number.

78868000 is an abundant number, since it is smaller than the sum of its proper divisors (114920504).

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

78868000 is a wasteful number, since it uses less digits than its factorization.

78868000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19742 (or 19724 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 78868000 is about 8880.7657327508. The cubic root of 78868000 is about 428.8449259567.

The spelling of 78868000 in words is "seventy-eight million, eight hundred sixty-eight thousand".