78670316 has 12 divisors (see below), whose sum is σ = 137830560. Its totient is φ = 39290160.

The previous prime is 78670313. The next prime is 78670357. The reversal of 78670316 is 61307687.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78670316.

It is not an unprimeable number, because it can be changed into a prime (78670313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7151 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (11485880).

Almost surely, 2^78670316 is an apocalyptic number.

It is an amenable number.

78670316 is a deficient number, since it is larger than the sum of its proper divisors (59160244).

78670316 is a wasteful number, since it uses less digits than its factorization.

78670316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22504 (or 22502 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 78670316 is about 8869.6288535654. The cubic root of 78670316 is about 428.4863237784.

The spelling of 78670316 in words is "seventy-eight million, six hundred seventy thousand, three hundred sixteen".