68731333 has 4 divisors (see below), whose sum is σ = 74979648. Its totient is φ = 62483020.

The previous prime is 68731321. The next prime is 68731339. The reversal of 68731333 is 33313786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68731333 is a prime.

It is a super-2 number, since 2×68731333² = 9447992271913778, 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 (68731339) 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, 3124141 + ... + 3124162.

It is an arithmetic number, because the mean of its divisors is an integer number (18744912).

Almost surely, 2^68731333 is an apocalyptic number.

It is an amenable number.

68731333 is a deficient number, since it is larger than the sum of its proper divisors (6248315).

68731333 is a wasteful number, since it uses less digits than its factorization.

68731333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6248314.

The product of its digits is 27216, while the sum is 34.

The square root of 68731333 is about 8290.4362370143. The cubic root of 68731333 is about 409.6235549255.

The spelling of 68731333 in words is "sixty-eight million, seven hundred thirty-one thousand, three hundred thirty-three".