64912339 has 2 divisors, whose sum is σ = 64912340. Its totient is φ = 64912338.

The previous prime is 64912313. The next prime is 64912349. The reversal of 64912339 is 93321946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64912339 - 2⁹ = 64911827 is a prime.

It is a super-2 number, since 2×64912339² = 8427223508901842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64912298 and 64912307.

It is not a weakly prime, because it can be changed into another prime (64912349) 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, 32456169 + 32456170.

It is an arithmetic number, because the mean of its divisors is an integer number (32456170).

Almost surely, 2^64912339 is an apocalyptic number.

64912339 is a deficient number, since it is larger than the sum of its proper divisors (1).

64912339 is an equidigital number, since it uses as much as digits as its factorization.

64912339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 37.

The square root of 64912339 is about 8056.8194096678. The cubic root of 64912339 is about 401.8917453943.

The spelling of 64912339 in words is "sixty-four million, nine hundred twelve thousand, three hundred thirty-nine".