64479751 has 8 divisors (see below), whose sum is σ = 74407424. Its totient is φ = 54731160.

The previous prime is 64479719. The next prime is 64479763. The reversal of 64479751 is 15797446.

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 64479751 - 2⁵ = 64479719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64479698 and 64479707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64479451) 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, 43995 + ... + 45436.

It is an arithmetic number, because the mean of its divisors is an integer number (9300928).

Almost surely, 2^64479751 is an apocalyptic number.

64479751 is a deficient number, since it is larger than the sum of its proper divisors (9927673).

64479751 is a wasteful number, since it uses less digits than its factorization.

64479751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89541.

The product of its digits is 211680, while the sum is 43.

The square root of 64479751 is about 8029.9284554721. The cubic root of 64479751 is about 400.9969941919.

The spelling of 64479751 in words is "sixty-four million, four hundred seventy-nine thousand, seven hundred fifty-one".