85439733 has 16 divisors (see below), whose sum is σ = 120216960. Its totient is φ = 53867264.

The previous prime is 85439723. The next prime is 85439741. The reversal of 85439733 is 33793458.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85439733 - 2¹⁷ = 85308661 is a prime.

It is a super-2 number, since 2×85439733² = 14599895950222578, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85439723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816 + ... + 13097.

It is an arithmetic number, because the mean of its divisors is an integer number (7513560).

Almost surely, 2^85439733 is an apocalyptic number.

It is an amenable number.

85439733 is a deficient number, since it is larger than the sum of its proper divisors (34777227).

85439733 is a wasteful number, since it uses less digits than its factorization.

85439733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14028.

The product of its digits is 272160, while the sum is 42.

The square root of 85439733 is about 9243.3615638468. The cubic root of 85439733 is about 440.4398717490.

The spelling of 85439733 in words is "eighty-five million, four hundred thirty-nine thousand, seven hundred thirty-three".