64465779 has 16 divisors (see below), whose sum is σ = 98461440. Its totient is φ = 36752160.

The previous prime is 64465777. The next prime is 64465783. The reversal of 64465779 is 97756446.

It is not a de Polignac number, because 64465779 - 2¹ = 64465777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64465777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6352 + ... + 13010.

It is an arithmetic number, because the mean of its divisors is an integer number (6153840).

Almost surely, 2^64465779 is an apocalyptic number.

64465779 is a deficient number, since it is larger than the sum of its proper divisors (33995661).

64465779 is a wasteful number, since it uses less digits than its factorization.

64465779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130.

The product of its digits is 1270080, while the sum is 48.

The square root of 64465779 is about 8029.0584130395. The cubic root of 64465779 is about 400.9680283297.

The spelling of 64465779 in words is "sixty-four million, four hundred sixty-five thousand, seven hundred seventy-nine".