65383931 has 2 divisors, whose sum is σ = 65383932. Its totient is φ = 65383930.

The previous prime is 65383919. The next prime is 65383973. The reversal of 65383931 is 13938356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65383931 - 2²² = 61189627 is a prime.

It is a super-2 number, since 2×65383931² = 8550116866025522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65383531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32691965 + 32691966.

It is an arithmetic number, because the mean of its divisors is an integer number (32691966).

Almost surely, 2^65383931 is an apocalyptic number.

65383931 is a deficient number, since it is larger than the sum of its proper divisors (1).

65383931 is an equidigital number, since it uses as much as digits as its factorization.

65383931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 65383931 is about 8086.0330818022. The cubic root of 65383931 is about 402.8626537446.

The spelling of 65383931 in words is "sixty-five million, three hundred eighty-three thousand, nine hundred thirty-one".