68947237 has 2 divisors, whose sum is σ = 68947238. Its totient is φ = 68947236.

The previous prime is 68947231. The next prime is 68947253. The reversal of 68947237 is 73274986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50680161 + 18267076 = 7119^2 + 4274^2 .

It is a cyclic number.

It is not a de Polignac number, because 68947237 - 2²³ = 60558629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68947231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34473618 + 34473619.

It is an arithmetic number, because the mean of its divisors is an integer number (34473619).

Almost surely, 2^68947237 is an apocalyptic number.

It is an amenable number.

68947237 is a deficient number, since it is larger than the sum of its proper divisors (1).

68947237 is an equidigital number, since it uses as much as digits as its factorization.

68947237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 68947237 is about 8303.4472961536. The cubic root of 68947237 is about 410.0520199710.

The spelling of 68947237 in words is "sixty-eight million, nine hundred forty-seven thousand, two hundred thirty-seven".