64479263 has 4 divisors (see below), whose sum is σ = 64543560. Its totient is φ = 64414968.

The previous prime is 64479223. The next prime is 64479299. The reversal of 64479263 is 36297446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36297446 = 2 ⋅18148723.

It is a cyclic number.

It is not a de Polignac number, because 64479263 - 2¹⁸ = 64217119 is a prime.

It is a super-3 number, since 3×64479263³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64479263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64479203) 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, 30620 + ... + 32657.

It is an arithmetic number, because the mean of its divisors is an integer number (16135890).

Almost surely, 2^64479263 is an apocalyptic number.

64479263 is a deficient number, since it is larger than the sum of its proper divisors (64297).

64479263 is a wasteful number, since it uses less digits than its factorization.

64479263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64296.

The product of its digits is 217728, while the sum is 41.

The square root of 64479263 is about 8029.8980690915. The cubic root of 64479263 is about 400.9959825718.

The spelling of 64479263 in words is "sixty-four million, four hundred seventy-nine thousand, two hundred sixty-three".