64279459 has 4 divisors (see below), whose sum is σ = 64298416. Its totient is φ = 64260504.

The previous prime is 64279447. The next prime is 64279477. The reversal of 64279459 is 95497246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64279459 - 2⁵ = 64279427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64279559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2844 + ... + 11689.

It is an arithmetic number, because the mean of its divisors is an integer number (16074604).

Almost surely, 2^64279459 is an apocalyptic number.

64279459 is a deficient number, since it is larger than the sum of its proper divisors (18957).

64279459 is a wasteful number, since it uses less digits than its factorization.

64279459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18956.

The product of its digits is 544320, while the sum is 46.

The square root of 64279459 is about 8017.4471622830. The cubic root of 64279459 is about 400.5813608894.

The spelling of 64279459 in words is "sixty-four million, two hundred seventy-nine thousand, four hundred fifty-nine".