899245 has 4 divisors (see below), whose sum is σ = 1079100. Its totient is φ = 719392.

The previous prime is 899237. The next prime is 899263. The reversal of 899245 is 542998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542998 = 2 ⋅271499.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 670761 = 478^2 + 819^2 .

It is a cyclic number.

It is not a de Polignac number, because 899245 - 2³ = 899237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89920 + ... + 89929.

It is an arithmetic number, because the mean of its divisors is an integer number (269775).

2⁸⁹⁹²⁴⁵ is an apocalyptic number.

It is an amenable number.

899245 is a deficient number, since it is larger than the sum of its proper divisors (179855).

899245 is a wasteful number, since it uses less digits than its factorization.

899245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179854.

The product of its digits is 25920, while the sum is 37.

The square root of 899245 is about 948.2852946239. The cubic root of 899245 is about 96.5219329637.

The spelling of 899245 in words is "eight hundred ninety-nine thousand, two hundred forty-five".