68784536 has 48 divisors (see below), whose sum is σ = 139417200. Its totient is φ = 31753920.

The previous prime is 68784481. The next prime is 68784571. The reversal of 68784536 is 63548786.

Its product of digits (967680) is a multiple of the sum of its prime factors (480).

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, 176630 + ... + 177018.

It is an arithmetic number, because the mean of its divisors is an integer number (2904525).

Almost surely, 2^68784536 is an apocalyptic number.

It is an amenable number.

68784536 is an abundant number, since it is smaller than the sum of its proper divisors (70632664).

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

68784536 is a wasteful number, since it uses less digits than its factorization.

68784536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 445 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 68784536 is about 8293.6443135693. The cubic root of 68784536 is about 409.7292203733.

The spelling of 68784536 in words is "sixty-eight million, seven hundred eighty-four thousand, five hundred thirty-six".