78863960 has 64 divisors (see below), whose sum is σ = 205701120. Its totient is φ = 26651520.

The previous prime is 78863957. The next prime is 78863977. The reversal of 78863960 is 6936887.

It is a super-4 number, since 4×78863960⁴ (a number of 33 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17897 + ... + 21863.

It is an arithmetic number, because the mean of its divisors is an integer number (3214080).

Almost surely, 2^78863960 is an apocalyptic number.

78863960 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78863960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102850560).

78863960 is an abundant number, since it is smaller than the sum of its proper divisors (126837160).

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

78863960 is a wasteful number, since it uses less digits than its factorization.

78863960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056 (or 4052 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 78863960 is about 8880.5382719743. The cubic root of 78863960 is about 428.8376033287.

The spelling of 78863960 in words is "seventy-eight million, eight hundred sixty-three thousand, nine hundred sixty".