64489708 has 6 divisors (see below), whose sum is σ = 112856996. Its totient is φ = 32244852.

The previous prime is 64489699. The next prime is 64489709. The reversal of 64489708 is 80798446.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64489709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8061210 + ... + 8061217.

Almost surely, 2^64489708 is an apocalyptic number.

It is an amenable number.

64489708 is a deficient number, since it is larger than the sum of its proper divisors (48367288).

64489708 is a wasteful number, since it uses less digits than its factorization.

64489708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122431 (or 16122429 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 64489708 is about 8030.5484246096. The cubic root of 64489708 is about 401.0176338578.

The spelling of 64489708 in words is "sixty-four million, four hundred eighty-nine thousand, seven hundred eight".