64537339 has 2 divisors, whose sum is σ = 64537340. Its totient is φ = 64537338.

The previous prime is 64537309. The next prime is 64537349. The reversal of 64537339 is 93373546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64537339 - 2⁷ = 64537211 is a prime.

It is not a weakly prime, because it can be changed into another prime (64537309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32268669 + 32268670.

It is an arithmetic number, because the mean of its divisors is an integer number (32268670).

Almost surely, 2^64537339 is an apocalyptic number.

64537339 is a deficient number, since it is larger than the sum of its proper divisors (1).

64537339 is an equidigital number, since it uses as much as digits as its factorization.

64537339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 40.

The square root of 64537339 is about 8033.5134903727. The cubic root of 64537339 is about 401.1163378263.

The spelling of 64537339 in words is "sixty-four million, five hundred thirty-seven thousand, three hundred thirty-nine".