64649914 has 12 divisors (see below), whose sum is σ = 112807674. Its totient is φ = 27707064.

The previous prime is 64649891. The next prime is 64649933. The reversal of 64649914 is 41994646.

It can be written as a sum of positive squares in only one way, i.e., 41925625 + 22724289 = 6475^2 + 4767^2 .

It is a super-2 number, since 2×64649914² = 8359222760414792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329749 + ... + 329944.

Almost surely, 2^64649914 is an apocalyptic number.

64649914 is a deficient number, since it is larger than the sum of its proper divisors (48157760).

64649914 is a wasteful number, since it uses less digits than its factorization.

64649914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659709 (or 659702 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 64649914 is about 8040.5170231771. The cubic root of 64649914 is about 401.3494299775.

The spelling of 64649914 in words is "sixty-four million, six hundred forty-nine thousand, nine hundred fourteen".