78112974 has 16 divisors (see below), whose sum is σ = 156320208. Its totient is φ = 26021952.

The previous prime is 78112973. The next prime is 78112981. The reversal of 78112974 is 47921187.

It is a super-2 number, since 2×78112974² = 12203273414249352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78112973) 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, 11524 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (9770013).

Almost surely, 2^78112974 is an apocalyptic number.

78112974 is an abundant number, since it is smaller than the sum of its proper divisors (78207234).

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

78112974 is a wasteful number, since it uses less digits than its factorization.

78112974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859.

The product of its digits is 28224, while the sum is 39.

The square root of 78112974 is about 8838.1544453579. The cubic root of 78112974 is about 427.4720504281.

The spelling of 78112974 in words is "seventy-eight million, one hundred twelve thousand, nine hundred seventy-four".