64189395 has 32 divisors (see below), whose sum is σ = 116907840. Its totient is φ = 33396480.

The previous prime is 64189369. The next prime is 64189397. The reversal of 64189395 is 59398146.

It is a happy number.

64189395 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 64189395 - 2¹² = 64185299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64189395.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64189397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (3653370).

Almost surely, 2^64189395 is an apocalyptic number.

64189395 is a deficient number, since it is larger than the sum of its proper divisors (52718445).

64189395 is a wasteful number, since it uses less digits than its factorization.

64189395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11652 (or 11646 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 64189395 is about 8011.8284429960. The cubic root of 64189395 is about 400.3941843358.

The spelling of 64189395 in words is "sixty-four million, one hundred eighty-nine thousand, three hundred ninety-five".