64285757 has 2 divisors, whose sum is σ = 64285758. Its totient is φ = 64285756.

The previous prime is 64285747. The next prime is 64285769. The reversal of 64285757 is 75758246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36132121 + 28153636 = 6011^2 + 5306^2 .

It is a cyclic number.

It is not a de Polignac number, because 64285757 - 2¹⁸ = 64023613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64285717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32142878 + 32142879.

It is an arithmetic number, because the mean of its divisors is an integer number (32142879).

Almost surely, 2^64285757 is an apocalyptic number.

It is an amenable number.

64285757 is a deficient number, since it is larger than the sum of its proper divisors (1).

64285757 is an equidigital number, since it uses as much as digits as its factorization.

64285757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 44.

The square root of 64285757 is about 8017.8399210760. The cubic root of 64285757 is about 400.5944432388.

The spelling of 64285757 in words is "sixty-four million, two hundred eighty-five thousand, seven hundred fifty-seven".