68544831 has 8 divisors (see below), whose sum is σ = 93863344. Its totient is φ = 44461440.

The previous prime is 68544823. The next prime is 68544841. The reversal of 68544831 is 13844586.

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

It is not a de Polignac number, because 68544831 - 2³ = 68544823 is a prime.

It is a super-2 number, since 2×68544831² = 9396787713637122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68544831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68544841) 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, 308650 + ... + 308871.

It is an arithmetic number, because the mean of its divisors is an integer number (11732918).

Almost surely, 2^68544831 is an apocalyptic number.

68544831 is a deficient number, since it is larger than the sum of its proper divisors (25318513).

68544831 is a wasteful number, since it uses less digits than its factorization.

68544831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617561.

The product of its digits is 92160, while the sum is 39.

The square root of 68544831 is about 8279.1805753951. The cubic root of 68544831 is about 409.2527157322.

The spelling of 68544831 in words is "sixty-eight million, five hundred forty-four thousand, eight hundred thirty-one".