64379911 has 4 divisors (see below), whose sum is σ = 64464400. Its totient is φ = 64295424.

The previous prime is 64379899. The next prime is 64379933. The reversal of 64379911 is 11997346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11997346 = 2 ⋅5998673.

It is a cyclic number.

It is not a de Polignac number, because 64379911 - 2¹³ = 64371719 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 (64379981) 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, 41091 + ... + 42628.

It is an arithmetic number, because the mean of its divisors is an integer number (16116100).

Almost surely, 2^64379911 is an apocalyptic number.

64379911 is a deficient number, since it is larger than the sum of its proper divisors (84489).

64379911 is an equidigital number, since it uses as much as digits as its factorization.

64379911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84488.

The product of its digits is 40824, while the sum is 40.

The square root of 64379911 is about 8023.7093043056. The cubic root of 64379911 is about 400.7899202880.

The spelling of 64379911 in words is "sixty-four million, three hundred seventy-nine thousand, nine hundred eleven".