68382731 has 2 divisors, whose sum is σ = 68382732. Its totient is φ = 68382730.

The previous prime is 68382707. The next prime is 68382781. The reversal of 68382731 is 13728386.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68382731 - 2²² = 64188427 is a prime.

It is a super-2 number, since 2×68382731² = 9352395798036722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68382701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34191365 + 34191366.

It is an arithmetic number, because the mean of its divisors is an integer number (34191366).

Almost surely, 2^68382731 is an apocalyptic number.

68382731 is a deficient number, since it is larger than the sum of its proper divisors (1).

68382731 is an equidigital number, since it uses as much as digits as its factorization.

68382731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 68382731 is about 8269.3851645694. The cubic root of 68382731 is about 408.9298504957.

The spelling of 68382731 in words is "sixty-eight million, three hundred eighty-two thousand, seven hundred thirty-one".