64562489 has 2 divisors, whose sum is σ = 64562490. Its totient is φ = 64562488.

The previous prime is 64562467. The next prime is 64562503. The reversal of 64562489 is 98426546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57229225 + 7333264 = 7565^2 + 2708^2 .

It is a cyclic number.

It is not a de Polignac number, because 64562489 - 2¹² = 64558393 is a prime.

It is not a weakly prime, because it can be changed into another prime (64562419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32281244 + 32281245.

It is an arithmetic number, because the mean of its divisors is an integer number (32281245).

Almost surely, 2^64562489 is an apocalyptic number.

It is an amenable number.

64562489 is a deficient number, since it is larger than the sum of its proper divisors (1).

64562489 is an equidigital number, since it uses as much as digits as its factorization.

64562489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The square root of 64562489 is about 8035.0786554955. The cubic root of 64562489 is about 401.1684356553.

The spelling of 64562489 in words is "sixty-four million, five hundred sixty-two thousand, four hundred eighty-nine".