899953 has 4 divisors (see below), whose sum is σ = 906660. Its totient is φ = 893248.

The previous prime is 899939. The next prime is 899971. The reversal of 899953 is 359998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359998 = 2 ⋅179999.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 214369 = 828^2 + 463^2 .

It is a cyclic number.

It is not a de Polignac number, because 899953 - 2¹⁷ = 768881 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (899903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3148 + ... + 3421.

It is an arithmetic number, because the mean of its divisors is an integer number (226665).

2⁸⁹⁹⁹⁵³ is an apocalyptic number.

It is an amenable number.

899953 is a deficient number, since it is larger than the sum of its proper divisors (6707).

899953 is a wasteful number, since it uses less digits than its factorization.

899953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706.

The product of its digits is 87480, while the sum is 43.

The square root of 899953 is about 948.6585265521. The cubic root of 899953 is about 96.5472577646.

It can be divided in two parts, 89995 and 3, that added together give a palindrome (89998).

The spelling of 899953 in words is "eight hundred ninety-nine thousand, nine hundred fifty-three".