68499824 has 20 divisors (see below), whose sum is σ = 132945360. Its totient is φ = 34191360.

The previous prime is 68499811. The next prime is 68499833. The reversal of 68499824 is 42899486.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6917 + ... + 13595.

It is an arithmetic number, because the mean of its divisors is an integer number (6647268).

Almost surely, 2^68499824 is an apocalyptic number.

It is an amenable number.

68499824 is a deficient number, since it is larger than the sum of its proper divisors (64445536).

68499824 is a wasteful number, since it uses less digits than its factorization.

68499824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328 (or 7322 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 68499824 is about 8276.4620460678. The cubic root of 68499824 is about 409.1631234193.

The spelling of 68499824 in words is "sixty-eight million, four hundred ninety-nine thousand, eight hundred twenty-four".