64465089 has 32 divisors (see below), whose sum is σ = 97026048. Its totient is φ = 37800000.

The previous prime is 64465069. The next prime is 64465091. The reversal of 64465089 is 98056446.

It is not a de Polignac number, because 64465089 - 2¹³ = 64456897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64465089.

It is not an unprimeable number, because it can be changed into a prime (64465069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85464 + ... + 86214.

It is an arithmetic number, because the mean of its divisors is an integer number (3032064).

Almost surely, 2^64465089 is an apocalyptic number.

It is an amenable number.

64465089 is a deficient number, since it is larger than the sum of its proper divisors (32560959).

64465089 is a wasteful number, since it uses less digits than its factorization.

64465089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 64465089 is about 8029.0154440006. The cubic root of 64465089 is about 400.9665977571.

The spelling of 64465089 in words is "sixty-four million, four hundred sixty-five thousand, eighty-nine".