78360856 has 16 divisors (see below), whose sum is σ = 167916240. Its totient is φ = 33583200.

The previous prime is 78360847. The next prime is 78360859. The reversal of 78360856 is 65806387.

It is a super-2 number, since 2×78360856² = 12280847506105472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78360859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699595 + ... + 699706.

It is an arithmetic number, because the mean of its divisors is an integer number (10494765).

Almost surely, 2^78360856 is an apocalyptic number.

It is an amenable number.

78360856 is an abundant number, since it is smaller than the sum of its proper divisors (89555384).

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

78360856 is a wasteful number, since it uses less digits than its factorization.

78360856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399314 (or 1399310 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 78360856 is about 8852.1667404088. The cubic root of 78360856 is about 427.9237497728.

The spelling of 78360856 in words is "seventy-eight million, three hundred sixty thousand, eight hundred fifty-six".