68503688 has 32 divisors (see below), whose sum is σ = 140564160. Its totient is φ = 31039680.

The previous prime is 68503679. The next prime is 68503691. The reversal of 68503688 is 88630586.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31781 + ... + 33867.

It is an arithmetic number, because the mean of its divisors is an integer number (4392630).

Almost surely, 2^68503688 is an apocalyptic number.

It is an amenable number.

68503688 is an abundant number, since it is smaller than the sum of its proper divisors (72060472).

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

68503688 is a wasteful number, since it uses less digits than its factorization.

68503688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477 (or 2473 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 68503688 is about 8276.6954758527. The cubic root of 68503688 is about 409.1708167558.

The spelling of 68503688 in words is "sixty-eight million, five hundred three thousand, six hundred eighty-eight".