68924992 has 14 divisors (see below), whose sum is σ = 136773158. Its totient is φ = 34462464.

The previous prime is 68924941. The next prime is 68925019. The reversal of 68924992 is 29942986.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63616576 + 5308416 = 7976^2 + 2304^2 .

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 as a sum of consecutive naturals, namely, 538413 + ... + 538540.

Almost surely, 2^68924992 is an apocalyptic number.

It is an amenable number.

68924992 is a deficient number, since it is larger than the sum of its proper divisors (67848166).

68924992 is a wasteful number, since it uses less digits than its factorization.

68924992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076965 (or 1076955 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 68924992 is about 8302.1076841968. The cubic root of 68924992 is about 410.0079157702.

The spelling of 68924992 in words is "sixty-eight million, nine hundred twenty-four thousand, nine hundred ninety-two".