78693960 has 64 divisors (see below), whose sum is σ = 238956480. Its totient is φ = 20729600.

The previous prime is 78693947. The next prime is 78693961. The reversal of 78693960 is 6939687.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78693961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6010 + ... + 13910.

It is an arithmetic number, because the mean of its divisors is an integer number (3733695).

Almost surely, 2^78693960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78693960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119478240).

78693960 is an abundant number, since it is smaller than the sum of its proper divisors (160262520).

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

78693960 is a wasteful number, since it uses less digits than its factorization.

78693960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7998 (or 7994 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 78693960 is about 8870.9616164202. The cubic root of 78693960 is about 428.5292460070.

The spelling of 78693960 in words is "seventy-eight million, six hundred ninety-three thousand, nine hundred sixty".