999314644 has 6 divisors (see below), whose sum is σ = 1748800634. Its totient is φ = 499657320.

The previous prime is 999314599. The next prime is 999314647. The reversal of 999314644 is 446413999.

It can be written as a sum of positive squares in only one way, i.e., 997801744 + 1512900 = 31588^2 + 1230^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999314647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124914327 + ... + 124914334.

Almost surely, 2^999314644 is an apocalyptic number.

It is an amenable number.

999314644 is a deficient number, since it is larger than the sum of its proper divisors (749485990).

999314644 is a wasteful number, since it uses less digits than its factorization.

999314644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249828665 (or 249828663 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The square root of 999314644 is about 31611.9383145039. The cubic root of 999314644 is about 999.7714957898.

The spelling of 999314644 in words is "nine hundred ninety-nine million, three hundred fourteen thousand, six hundred forty-four".