68987574 has 12 divisors (see below), whose sum is σ = 149473116. Its totient is φ = 22995852.

The previous prime is 68987561. The next prime is 68987591. The reversal of 68987574 is 47578986.

68987574 is a `hidden beast` number, since 68 + 9 + 8 + 7 + 574 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68987574.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 1916304 + ... + 1916339.

It is an arithmetic number, because the mean of its divisors is an integer number (12456093).

Almost surely, 2^68987574 is an apocalyptic number.

68987574 is an abundant number, since it is smaller than the sum of its proper divisors (80485542).

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

68987574 is a wasteful number, since it uses less digits than its factorization.

68987574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832651 (or 3832648 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 68987574 is about 8305.8758719355. The cubic root of 68987574 is about 410.1319702079.

The spelling of 68987574 in words is "sixty-eight million, nine hundred eighty-seven thousand, five hundred seventy-four".