64476539 has 2 divisors, whose sum is σ = 64476540. Its totient is φ = 64476538.

The previous prime is 64476493. The next prime is 64476551. The reversal of 64476539 is 93567446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64476539 - 2¹⁶ = 64411003 is a prime.

It is a super-3 number, since 3×64476539³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64476539.

It is not a weakly prime, because it can be changed into another prime (64476569) 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, 32238269 + 32238270.

It is an arithmetic number, because the mean of its divisors is an integer number (32238270).

Almost surely, 2^64476539 is an apocalyptic number.

64476539 is a deficient number, since it is larger than the sum of its proper divisors (1).

64476539 is an equidigital number, since it uses as much as digits as its factorization.

64476539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The square root of 64476539 is about 8029.7284511993. The cubic root of 64476539 is about 400.9903356481.

The spelling of 64476539 in words is "sixty-four million, four hundred seventy-six thousand, five hundred thirty-nine".