78362856 has 256 divisors, whose sum is σ = 266112000. Its totient is φ = 21047040.

The previous prime is 78362839. The next prime is 78362861. The reversal of 78362856 is 65826387.

It is a super-2 number, since 2×78362856² = 12281474400953472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1328155 + ... + 1328213.

It is an arithmetic number, because the mean of its divisors is an integer number (1039500).

Almost surely, 2^78362856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78362856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133056000).

78362856 is an abundant number, since it is smaller than the sum of its proper divisors (187749144).

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

78362856 is a wasteful number, since it uses less digits than its factorization.

78362856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 78362856 is about 8852.2797063807. The cubic root of 78362856 is about 427.9273903669.

The spelling of 78362856 in words is "seventy-eight million, three hundred sixty-two thousand, eight hundred fifty-six".