68352931 has 8 divisors (see below), whose sum is σ = 69555024. Its totient is φ = 67156320.

The previous prime is 68352917. The next prime is 68352943. The reversal of 68352931 is 13925386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68352931 - 2¹⁷ = 68221859 is a prime.

It is a super-2 number, since 2×68352931² = 9344246352581522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68352961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29781 + ... + 31993.

It is an arithmetic number, because the mean of its divisors is an integer number (8694378).

Almost surely, 2^68352931 is an apocalyptic number.

68352931 is a deficient number, since it is larger than the sum of its proper divisors (1202093).

68352931 is a wasteful number, since it uses less digits than its factorization.

68352931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741.

The product of its digits is 38880, while the sum is 37.

The square root of 68352931 is about 8267.5831414023. The cubic root of 68352931 is about 408.8704403690.

The spelling of 68352931 in words is "sixty-eight million, three hundred fifty-two thousand, nine hundred thirty-one".