85833531 has 12 divisors (see below), whose sum is σ = 141693552. Its totient is φ = 49047696.

The previous prime is 85833529. The next prime is 85833607. The reversal of 85833531 is 13533858.

It is not a de Polignac number, because 85833531 - 2¹ = 85833529 is a prime.

It is a super-2 number, since 2×85833531² = 14734790087855922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85833511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681156 + ... + 681281.

It is an arithmetic number, because the mean of its divisors is an integer number (11807796).

Almost surely, 2^85833531 is an apocalyptic number.

85833531 is a deficient number, since it is larger than the sum of its proper divisors (55860021).

85833531 is a wasteful number, since it uses less digits than its factorization.

85833531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362450 (or 1362447 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 85833531 is about 9264.6387409332. The cubic root of 85833531 is about 441.1155080220.

The spelling of 85833531 in words is "eighty-five million, eight hundred thirty-three thousand, five hundred thirty-one".