64268479 has 4 divisors (see below), whose sum is σ = 70111080. Its totient is φ = 58425880.

The previous prime is 64268459. The next prime is 64268497. The reversal of 64268479 is 97486246.

It is a happy number.

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 64268479 - 2²¹ = 62171327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64268429) 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, 2921284 + ... + 2921305.

It is an arithmetic number, because the mean of its divisors is an integer number (17527770).

Almost surely, 2^64268479 is an apocalyptic number.

64268479 is a deficient number, since it is larger than the sum of its proper divisors (5842601).

64268479 is a wasteful number, since it uses less digits than its factorization.

64268479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842600.

The product of its digits is 580608, while the sum is 46.

The square root of 64268479 is about 8016.7623764210. The cubic root of 64268479 is about 400.5585509391.

The spelling of 64268479 in words is "sixty-four million, two hundred sixty-eight thousand, four hundred seventy-nine".