85761291 has 24 divisors (see below), whose sum is σ = 143648512. Its totient is φ = 44550000.

The previous prime is 85761259. The next prime is 85761329. The reversal of 85761291 is 19216758.

It is not a de Polignac number, because 85761291 - 2⁵ = 85761259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85761211) 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 23 ways as a sum of consecutive naturals, for example, 14335 + ... + 19416.

Almost surely, 2^85761291 is an apocalyptic number.

85761291 is a deficient number, since it is larger than the sum of its proper divisors (57887221).

85761291 is a wasteful number, since it uses less digits than its factorization.

85761291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33783 (or 33772 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 85761291 is about 9260.7392253534. The cubic root of 85761291 is about 440.9917214009.

The spelling of 85761291 in words is "eighty-five million, seven hundred sixty-one thousand, two hundred ninety-one".