68623831 has 8 divisors (see below), whose sum is σ = 71294400. Its totient is φ = 65973600.

The previous prime is 68623799. The next prime is 68623871. The reversal of 68623831 is 13832686.

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 68623831 - 2⁵ = 68623799 is a prime.

It is a super-2 number, since 2×68623831² = 9418460362233122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68623871) 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, 1981 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (8911800).

Almost surely, 2^68623831 is an apocalyptic number.

68623831 is a deficient number, since it is larger than the sum of its proper divisors (2670569).

68623831 is a wasteful number, since it uses less digits than its factorization.

68623831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10169.

The product of its digits is 41472, while the sum is 37.

The square root of 68623831 is about 8283.9502050652. The cubic root of 68623831 is about 409.4098807643.

The spelling of 68623831 in words is "sixty-eight million, six hundred twenty-three thousand, eight hundred thirty-one".