64785479 has 8 divisors (see below), whose sum is σ = 71100288. Its totient is φ = 58541560.

The previous prime is 64785473. The next prime is 64785517. The reversal of 64785479 is 97458746.

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

It is not a de Polignac number, because 64785479 - 2⁴ = 64785463 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 (64785473) 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, 15797 + ... + 19470.

It is an arithmetic number, because the mean of its divisors is an integer number (8887536).

Almost surely, 2^64785479 is an apocalyptic number.

64785479 is a deficient number, since it is larger than the sum of its proper divisors (6314809).

64785479 is a wasteful number, since it uses less digits than its factorization.

64785479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35445.

The product of its digits is 1693440, while the sum is 50.

The square root of 64785479 is about 8048.9427256007. The cubic root of 64785479 is about 401.6297652281.

The spelling of 64785479 in words is "sixty-four million, seven hundred eighty-five thousand, four hundred seventy-nine".