64900189 has 8 divisors (see below), whose sum is σ = 65525760. Its totient is φ = 64277616.

The previous prime is 64900141. The next prime is 64900193. The reversal of 64900189 is 98100946.

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

It is a cyclic number.

It is not a de Polignac number, because 64900189 - 2⁷ = 64900061 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 (64907189) 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, 74772 + ... + 75634.

It is an arithmetic number, because the mean of its divisors is an integer number (8190720).

Almost surely, 2^64900189 is an apocalyptic number.

It is an amenable number.

64900189 is a deficient number, since it is larger than the sum of its proper divisors (625571).

64900189 is a wasteful number, since it uses less digits than its factorization.

64900189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 64900189 is about 8056.0653547498. The cubic root of 64900189 is about 401.8666690658.

The spelling of 64900189 in words is "sixty-four million, nine hundred thousand, one hundred eighty-nine".