999536 has 20 divisors (see below), whose sum is σ = 1953000. Its totient is φ = 495552.

The previous prime is 999529. The next prime is 999541. The reversal of 999536 is 635999.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 999493 and 999502.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999536.

It is an unprimeable number.

999536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690 + ... + 3038.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2⁹⁹⁹⁵³⁶ is an apocalyptic number.

It is an amenable number.

999536 is a deficient number, since it is larger than the sum of its proper divisors (953464).

999536 is a wasteful number, since it uses less digits than its factorization.

999536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its digits is 65610, while the sum is 41.

The square root of 999536 is about 999.7679730818. The cubic root of 999536 is about 99.9845309405.

The spelling of 999536 in words is "nine hundred ninety-nine thousand, five hundred thirty-six".