64889562 has 8 divisors (see below), whose sum is σ = 129779136. Its totient is φ = 21629852.

The previous prime is 64889551. The next prime is 64889569. The reversal of 64889562 is 26598846.

It is a happy number.

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

64889562 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (64889569) 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, 5407458 + ... + 5407469.

It is an arithmetic number, because the mean of its divisors is an integer number (16222392).

Almost surely, 2^64889562 is an apocalyptic number.

64889562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64889562 is a wasteful number, since it uses less digits than its factorization.

64889562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10814932.

The product of its digits is 829440, while the sum is 48.

The square root of 64889562 is about 8055.4057625920. The cubic root of 64889562 is about 401.8447334840.

The spelling of 64889562 in words is "sixty-four million, eight hundred eighty-nine thousand, five hundred sixty-two".