999564652 has 6 divisors (see below), whose sum is σ = 1749238148. Its totient is φ = 499782324.

The previous prime is 999564551. The next prime is 999564653. The reversal of 999564652 is 256465999.

999564652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×999564652² = 1998258987055762208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 999564593 and 999564602.

It is not an unprimeable number, because it can be changed into a prime (999564653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124945578 + ... + 124945585.

Almost surely, 2^999564652 is an apocalyptic number.

It is an amenable number.

999564652 is a deficient number, since it is larger than the sum of its proper divisors (749673496).

999564652 is a wasteful number, since it uses less digits than its factorization.

999564652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249891167 (or 249891165 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 55.

The square root of 999564652 is about 31615.8923960719. The cubic root of 999564652 is about 999.8548629363.

It can be divided in two parts, 9995 and 64652, that added together give a palindrome (74647).

The spelling of 999564652 in words is "nine hundred ninety-nine million, five hundred sixty-four thousand, six hundred fifty-two".