64045577 has 2 divisors, whose sum is σ = 64045578. Its totient is φ = 64045576.

The previous prime is 64045529. The next prime is 64045589. The reversal of 64045577 is 77554046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63936016 + 109561 = 7996^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 64045577 - 2¹⁰ = 64044553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64045577.

It is not a weakly prime, because it can be changed into another prime (64045517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32022788 + 32022789.

It is an arithmetic number, because the mean of its divisors is an integer number (32022789).

Almost surely, 2^64045577 is an apocalyptic number.

It is an amenable number.

64045577 is a deficient number, since it is larger than the sum of its proper divisors (1).

64045577 is an equidigital number, since it uses as much as digits as its factorization.

64045577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 64045577 is about 8002.8480555362. The cubic root of 64045577 is about 400.0949295525.

The spelling of 64045577 in words is "sixty-four million, forty-five thousand, five hundred seventy-seven".