78674286 has 16 divisors (see below), whose sum is σ = 157449168. Its totient is φ = 26208000.

The previous prime is 78674263. The next prime is 78674291. The reversal of 78674286 is 68247687.

It is a congruent number.

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, 9336 + ... + 15636.

It is an arithmetic number, because the mean of its divisors is an integer number (9840573).

Almost surely, 2^78674286 is an apocalyptic number.

78674286 is an abundant number, since it is smaller than the sum of its proper divisors (78774882).

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

78674286 is a wasteful number, since it uses less digits than its factorization.

78674286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387.

The product of its digits is 903168, while the sum is 48.

The square root of 78674286 is about 8869.8526481560. The cubic root of 78674286 is about 428.4935313343.

The spelling of 78674286 in words is "seventy-eight million, six hundred seventy-four thousand, two hundred eighty-six".