68957973 has 80 divisors (see below), whose sum is σ = 128008320. Its totient is φ = 36111744.

The previous prime is 68957963. The next prime is 68957989. The reversal of 68957973 is 37975986.

68957973 is a `hidden beast` number, since 68 + 9 + 579 + 7 + 3 = 666.

It is not a de Polignac number, because 68957973 - 2⁶ = 68957909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68957963) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 398515 + ... + 398687.

It is an arithmetic number, because the mean of its divisors is an integer number (1600104).

Almost surely, 2^68957973 is an apocalyptic number.

68957973 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68957973 is a deficient number, since it is larger than the sum of its proper divisors (59050347).

68957973 is a wasteful number, since it uses less digits than its factorization.

68957973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 239 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 68957973 is about 8304.0937494708. The cubic root of 68957973 is about 410.0733023806.

The spelling of 68957973 in words is "sixty-eight million, nine hundred fifty-seven thousand, nine hundred seventy-three".