68632992 has 72 divisors (see below), whose sum is σ = 196481376. Its totient is φ = 22724736.

The previous prime is 68632987. The next prime is 68633003. The reversal of 68632992 is 29923686.

68632992 is a `hidden beast` number, since 6 + 8 + 632 + 9 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

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, 47383 + ... + 48809.

It is an arithmetic number, because the mean of its divisors is an integer number (2728908).

Almost surely, 2^68632992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68632992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98240688).

68632992 is an abundant number, since it is smaller than the sum of its proper divisors (127848384).

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

68632992 is a wasteful number, since it uses less digits than its factorization.

68632992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1599 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 68632992 is about 8284.5031233020. The cubic root of 68632992 is about 409.4280981337.

The spelling of 68632992 in words is "sixty-eight million, six hundred thirty-two thousand, nine hundred ninety-two".