64060649 has 2 divisors, whose sum is σ = 64060650. Its totient is φ = 64060648.

The previous prime is 64060637. The next prime is 64060691. The reversal of 64060649 is 94606046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57274624 + 6786025 = 7568^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 64060649 - 2²⁴ = 47283433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64060049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32030324 + 32030325.

It is an arithmetic number, because the mean of its divisors is an integer number (32030325).

Almost surely, 2^64060649 is an apocalyptic number.

It is an amenable number.

64060649 is a deficient number, since it is larger than the sum of its proper divisors (1).

64060649 is an equidigital number, since it uses as much as digits as its factorization.

64060649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 64060649 is about 8003.7896649025. The cubic root of 64060649 is about 400.1263121922.

The spelling of 64060649 in words is "sixty-four million, sixty thousand, six hundred forty-nine".