78712074 has 96 divisors (see below), whose sum is σ = 214171776. Its totient is φ = 21150720.

The previous prime is 78712063. The next prime is 78712093. The reversal of 78712074 is 47021787.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57154 + ... + 58514.

It is an arithmetic number, because the mean of its divisors is an integer number (2230956).

Almost surely, 2^78712074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78712074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107085888).

78712074 is an abundant number, since it is smaller than the sum of its proper divisors (135459702).

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

78712074 is a wasteful number, since it uses less digits than its factorization.

78712074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 78712074 is about 8871.9825292885. The cubic root of 78712074 is about 428.5621235123.

The spelling of 78712074 in words is "seventy-eight million, seven hundred twelve thousand, seventy-four".