64614631 has 2 divisors, whose sum is σ = 64614632. Its totient is φ = 64614630.

The previous prime is 64614619. The next prime is 64614661. The reversal of 64614631 is 13641646.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64614631 - 2⁷ = 64614503 is a prime.

It is a super-2 number, since 2×64614631² = 8350101078532322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64614593 and 64614602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64614661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32307315 + 32307316.

It is an arithmetic number, because the mean of its divisors is an integer number (32307316).

Almost surely, 2^64614631 is an apocalyptic number.

64614631 is a deficient number, since it is larger than the sum of its proper divisors (1).

64614631 is an equidigital number, since it uses as much as digits as its factorization.

64614631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 64614631 is about 8038.3226484137. The cubic root of 64614631 is about 401.2764039004.

The spelling of 64614631 in words is "sixty-four million, six hundred fourteen thousand, six hundred thirty-one".