64407879 has 28 divisors (see below), whose sum is σ = 98448696. Its totient is φ = 42103152.

The previous prime is 64407877. The next prime is 64407899. The reversal of 64407879 is 97870446.

It is not a de Polignac number, because 64407879 - 2¹ = 64407877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64407877) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 37804 + ... + 39470.

Almost surely, 2^64407879 is an apocalyptic number.

64407879 is a deficient number, since it is larger than the sum of its proper divisors (34040817).

64407879 is an equidigital number, since it uses as much as digits as its factorization.

64407879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 64407879 is about 8025.4519498904. The cubic root of 64407879 is about 400.8479491023.

The spelling of 64407879 in words is "sixty-four million, four hundred seven thousand, eight hundred seventy-nine".