64841089 has 2 divisors, whose sum is σ = 64841090. Its totient is φ = 64841088.

The previous prime is 64841083. The next prime is 64841093. The reversal of 64841089 is 98014846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43125489 + 21715600 = 6567^2 + 4660^2 .

It is a cyclic number.

It is not a de Polignac number, because 64841089 - 2²³ = 56452481 is a prime.

It is not a weakly prime, because it can be changed into another prime (64841083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32420544 + 32420545.

It is an arithmetic number, because the mean of its divisors is an integer number (32420545).

Almost surely, 2^64841089 is an apocalyptic number.

It is an amenable number.

64841089 is a deficient number, since it is larger than the sum of its proper divisors (1).

64841089 is an equidigital number, since it uses as much as digits as its factorization.

64841089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 64841089 is about 8052.3964755841. The cubic root of 64841089 is about 401.7446481935.

The spelling of 64841089 in words is "sixty-four million, eight hundred forty-one thousand, eighty-nine".