78935870 has 16 divisors (see below), whose sum is σ = 153014400. Its totient is φ = 29145504.

The previous prime is 78935869. The next prime is 78935873. The reversal of 78935870 is 7853987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78935873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303470 + ... + 303729.

It is an arithmetic number, because the mean of its divisors is an integer number (9563400).

Almost surely, 2^78935870 is an apocalyptic number.

78935870 is a deficient number, since it is larger than the sum of its proper divisors (74078530).

78935870 is a wasteful number, since it uses less digits than its factorization.

78935870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607219.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 78935870 is about 8884.5860905278. The cubic root of 78935870 is about 428.9679051123.

The spelling of 78935870 in words is "seventy-eight million, nine hundred thirty-five thousand, eight hundred seventy".