64493459 has 8 divisors (see below), whose sum is σ = 65286432. Its totient is φ = 63705600.

The previous prime is 64493441. The next prime is 64493483. The reversal of 64493459 is 95439446.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64493459 - 2⁸ = 64493203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64493659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28037 + ... + 30249.

It is an arithmetic number, because the mean of its divisors is an integer number (8160804).

Almost surely, 2^64493459 is an apocalyptic number.

64493459 is a deficient number, since it is larger than the sum of its proper divisors (792973).

64493459 is a wasteful number, since it uses less digits than its factorization.

64493459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557.

The product of its digits is 466560, while the sum is 44.

The square root of 64493459 is about 8030.7819669071. The cubic root of 64493459 is about 401.0254086797.

The spelling of 64493459 in words is "sixty-four million, four hundred ninety-three thousand, four hundred fifty-nine".