78767982 has 24 divisors (see below), whose sum is σ = 170838720. Its totient is φ = 26229120.

The previous prime is 78767971. The next prime is 78768023. The reversal of 78767982 is 28976787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24382 + ... + 27422.

It is an arithmetic number, because the mean of its divisors is an integer number (7118280).

Almost surely, 2^78767982 is an apocalyptic number.

78767982 is an abundant number, since it is smaller than the sum of its proper divisors (92070738).

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

78767982 is a wasteful number, since it uses less digits than its factorization.

78767982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488 (or 4485 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 78767982 is about 8875.1327877390. The cubic root of 78767982 is about 428.6635665709.

The spelling of 78767982 in words is "seventy-eight million, seven hundred sixty-seven thousand, nine hundred eighty-two".