899431 has 8 divisors (see below), whose sum is σ = 991760. Its totient is φ = 810432.

The previous prime is 899429. The next prime is 899447. The reversal of 899431 is 134998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 899431 - 2¹ = 899429 is a prime.

It is a super-2 number, since 2×899431² = 1617952247522, which contains 22 as substring.

It is a Duffinian number.

899431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899401) 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 7 ways as a sum of consecutive naturals, for example, 246 + ... + 1363.

It is an arithmetic number, because the mean of its divisors is an integer number (123970).

2⁸⁹⁹⁴³¹ is an apocalyptic number.

899431 is a deficient number, since it is larger than the sum of its proper divisors (92329).

899431 is a wasteful number, since it uses less digits than its factorization.

899431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its digits is 7776, while the sum is 34.

The square root of 899431 is about 948.3833613049. The cubic root of 899431 is about 96.5285873763.

It can be divided in two parts, 8994 and 31, that added together give a square (9025 = 95²).

The spelling of 899431 in words is "eight hundred ninety-nine thousand, four hundred thirty-one".