899522 has 16 divisors (see below), whose sum is σ = 1504440. Its totient is φ = 400512.

The previous prime is 899519. The next prime is 899531. The reversal of 899522 is 225998.

It can be written as a sum of positive squares in 4 ways, for example, as 638401 + 261121 = 799^2 + 511^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158 + ... + 1350.

2⁸⁹⁹⁵²² is an apocalyptic number.

899522 is a deficient number, since it is larger than the sum of its proper divisors (604918).

899522 is a wasteful number, since it uses less digits than its factorization.

899522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237.

The product of its digits is 12960, while the sum is 35.

The square root of 899522 is about 948.4313364709. The cubic root of 899522 is about 96.5318426956.

The spelling of 899522 in words is "eight hundred ninety-nine thousand, five hundred twenty-two".