65712473 has 2 divisors, whose sum is σ = 65712474. Its totient is φ = 65712472.

The previous prime is 65712457. The next prime is 65712523. The reversal of 65712473 is 37421756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36638809 + 29073664 = 6053^2 + 5392^2 .

It is a cyclic number.

It is not a de Polignac number, because 65712473 - 2⁴ = 65712457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65712443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32856236 + 32856237.

It is an arithmetic number, because the mean of its divisors is an integer number (32856237).

Almost surely, 2^65712473 is an apocalyptic number.

It is an amenable number.

65712473 is a deficient number, since it is larger than the sum of its proper divisors (1).

65712473 is an equidigital number, since it uses as much as digits as its factorization.

65712473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 65712473 is about 8106.3230258854. The cubic root of 65712473 is about 403.5362964707.

The spelling of 65712473 in words is "sixty-five million, seven hundred twelve thousand, four hundred seventy-three".