64998944 has 12 divisors (see below), whose sum is σ = 127966734. Its totient is φ = 32499456.

The previous prime is 64998917. The next prime is 64998959. The reversal of 64998944 is 44989946.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64963600 + 35344 = 8060^2 + 188^2 .

It is a super-2 number, since 2×64998944² = 8449725442230272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015577 + ... + 1015640.

Almost surely, 2^64998944 is an apocalyptic number.

It is an amenable number.

64998944 is a deficient number, since it is larger than the sum of its proper divisors (62967790).

64998944 is a wasteful number, since it uses less digits than its factorization.

64998944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031227 (or 2031219 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 64998944 is about 8062.1922576927. The cubic root of 64998944 is about 402.0703984695.

The spelling of 64998944 in words is "sixty-four million, nine hundred ninety-eight thousand, nine hundred forty-four".