68000831 has 4 divisors (see below), whose sum is σ = 68049912. Its totient is φ = 67951752.

The previous prime is 68000827. The next prime is 68000839. The reversal of 68000831 is 13800086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68000831 - 2² = 68000827 is a prime.

It is a super-3 number, since 3×68000831³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 68000831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68000839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22400 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (17012478).

Almost surely, 2^68000831 is an apocalyptic number.

68000831 is a deficient number, since it is larger than the sum of its proper divisors (49081).

68000831 is a wasteful number, since it uses less digits than its factorization.

68000831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49080.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 68000831 is about 8246.2616378575. The cubic root of 68000831 is about 408.1671728592.

The spelling of 68000831 in words is "sixty-eight million, eight hundred thirty-one", and thus it is an aban number.