68784464 has 20 divisors (see below), whose sum is σ = 152308704. Its totient is φ = 29479008.

The previous prime is 68784413. The next prime is 68784473. The reversal of 68784464 is 46448786.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306962 + ... + 307185.

Almost surely, 2^68784464 is an apocalyptic number.

It is an amenable number.

68784464 is an abundant number, since it is smaller than the sum of its proper divisors (83524240).

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

68784464 is a wasteful number, since it uses less digits than its factorization.

68784464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614162 (or 614156 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The square root of 68784464 is about 8293.6399728949. The cubic root of 68784464 is about 409.7290774124.

The spelling of 68784464 in words is "sixty-eight million, seven hundred eighty-four thousand, four hundred sixty-four".