78856700 has 36 divisors (see below), whose sum is σ = 184285080. Its totient is φ = 29115840.

The previous prime is 78856691. The next prime is 78856709. The reversal of 78856700 is 765887.

It is an interprime number because it is at equal distance from previous prime (78856691) and next prime (78856709).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78856709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29030 + ... + 31629.

It is an arithmetic number, because the mean of its divisors is an integer number (5119030).

Almost surely, 2^78856700 is an apocalyptic number.

It is an amenable number.

78856700 is an abundant number, since it is smaller than the sum of its proper divisors (105428380).

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

78856700 is a wasteful number, since it uses less digits than its factorization.

78856700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60686 (or 60679 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 78856700 is about 8880.1295035602. The cubic root of 78856700 is about 428.8244437201.

The spelling of 78856700 in words is "seventy-eight million, eight hundred fifty-six thousand, seven hundred".