64089828 has 54 divisors (see below), whose sum is σ = 178083542. Its totient is φ = 19419840.

The previous prime is 64089827. The next prime is 64089829. The reversal of 64089828 is 82898046.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64089827) and next prime (64089829).

It can be written as a sum of positive squares in only one way, i.e., 59629284 + 4460544 = 7722^2 + 2112^2 .

It is not an unprimeable number, because it can be changed into a prime (64089827) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3001 + ... + 11712.

Almost surely, 2^64089828 is an apocalyptic number.

It is an amenable number.

64089828 is an abundant number, since it is smaller than the sum of its proper divisors (113993714).

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

64089828 is a wasteful number, since it uses less digits than its factorization.

64089828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14745 (or 14729 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 64089828 is about 8005.6122813936. The cubic root of 64089828 is about 400.1870541799.

The spelling of 64089828 in words is "sixty-four million, eighty-nine thousand, eight hundred twenty-eight".