849531 has 8 divisors (see below), whose sum is σ = 1139200. Its totient is φ = 563112.

The previous prime is 849523. The next prime is 849533. The reversal of 849531 is 135948.

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

It is not a de Polignac number, because 849531 - 2³ = 849523 is a prime.

It is a super-2 number, since 2×849531² = 1443405839922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115 + ... + 1308.

It is an arithmetic number, because the mean of its divisors is an integer number (142400).

2⁸⁴⁹⁵³¹ is an apocalyptic number.

849531 is a deficient number, since it is larger than the sum of its proper divisors (289669).

849531 is a wasteful number, since it uses less digits than its factorization.

849531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625.

The product of its digits is 4320, while the sum is 30.

The square root of 849531 is about 921.7000596723. The cubic root of 849531 is about 94.7093982073.

The spelling of 849531 in words is "eight hundred forty-nine thousand, five hundred thirty-one".