68923972 has 48 divisors (see below), whose sum is σ = 134132992. Its totient is φ = 30792960.

The previous prime is 68923957. The next prime is 68923979. The reversal of 68923972 is 27932986.

It is not an unprimeable number, because it can be changed into a prime (68923979) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 254197 + ... + 254467.

Almost surely, 2^68923972 is an apocalyptic number.

It is an amenable number.

68923972 is a deficient number, since it is larger than the sum of its proper divisors (65209020).

68923972 is a wasteful number, since it uses less digits than its factorization.

68923972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 426 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 68923972 is about 8302.0462537859. The cubic root of 68923972 is about 410.0058932328.

The spelling of 68923972 in words is "sixty-eight million, nine hundred twenty-three thousand, nine hundred seventy-two".