78873912 has 96 divisors (see below), whose sum is σ = 238645680. Its totient is φ = 24261120.

The previous prime is 78873857. The next prime is 78873913. The reversal of 78873912 is 21937887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78873913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23712 + ... + 26832.

Almost surely, 2^78873912 is an apocalyptic number.

78873912 is a gapful number since it is divisible by the number (72) 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 78873912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119322840).

78873912 is an abundant number, since it is smaller than the sum of its proper divisors (159771768).

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

78873912 is a wasteful number, since it uses less digits than its factorization.

78873912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3139 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 78873912 is about 8881.0985806937. The cubic root of 78873912 is about 428.8556411934.

The spelling of 78873912 in words is "seventy-eight million, eight hundred seventy-three thousand, nine hundred twelve".