78874506 has 32 divisors (see below), whose sum is σ = 176310720. Its totient is φ = 26136432.

The previous prime is 78874463. The next prime is 78874511. The reversal of 78874506 is 60547887.

78874506 is a `hidden beast` number, since 78 + 8 + 74 + 506 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5121 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (5509710).

Almost surely, 2^78874506 is an apocalyptic number.

78874506 is an abundant number, since it is smaller than the sum of its proper divisors (97436214).

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

78874506 is a wasteful number, since it uses less digits than its factorization.

78874506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8627 (or 8621 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 78874506 is about 8881.1320224395. The cubic root of 78874506 is about 428.8567177623.

The spelling of 78874506 in words is "seventy-eight million, eight hundred seventy-four thousand, five hundred six".