64460731 has 2 divisors, whose sum is σ = 64460732. Its totient is φ = 64460730.

The previous prime is 64460717. The next prime is 64460779. The reversal of 64460731 is 13706446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64460731 - 2¹⁵ = 64427963 is a prime.

It is a super-2 number, since 2×64460731² = 8310371682108722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64460693 and 64460702.

It is not a weakly prime, because it can be changed into another prime (64460701) 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, 32230365 + 32230366.

It is an arithmetic number, because the mean of its divisors is an integer number (32230366).

Almost surely, 2^64460731 is an apocalyptic number.

64460731 is a deficient number, since it is larger than the sum of its proper divisors (1).

64460731 is an equidigital number, since it uses as much as digits as its factorization.

64460731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 64460731 is about 8028.7440487289. The cubic root of 64460731 is about 400.9575621078.

The spelling of 64460731 in words is "sixty-four million, four hundred sixty thousand, seven hundred thirty-one".