64489088 has 16 divisors (see below), whose sum is σ = 128474610. Its totient is φ = 32244480.

The previous prime is 64489067. The next prime is 64489093. The reversal of 64489088 is 88098446.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 15936064 = 6968^2 + 3992^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251783 + ... + 252038.

Almost surely, 2^64489088 is an apocalyptic number.

It is an amenable number.

64489088 is a deficient number, since it is larger than the sum of its proper divisors (63985522).

64489088 is an equidigital number, since it uses as much as digits as its factorization.

64489088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503835 (or 503823 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 64489088 is about 8030.5098219229. The cubic root of 64489088 is about 401.0163487343.

The spelling of 64489088 in words is "sixty-four million, four hundred eighty-nine thousand, eighty-eight".