85859261 has 8 divisors (see below), whose sum is σ = 88681824. Its totient is φ = 83074320.

The previous prime is 85859201. The next prime is 85859281. The reversal of 85859261 is 16295858.

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 85859261 - 2¹⁸ = 85597117 is a prime.

It is a super-2 number, since 2×85859261² = 14743625398932242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85859201) 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, 4730 + ... + 13931.

It is an arithmetic number, because the mean of its divisors is an integer number (11085228).

Almost surely, 2^85859261 is an apocalyptic number.

It is an amenable number.

85859261 is a deficient number, since it is larger than the sum of its proper divisors (2822563).

85859261 is a wasteful number, since it uses less digits than its factorization.

85859261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18811.

The product of its digits is 172800, while the sum is 44.

The square root of 85859261 is about 9266.0272501218. The cubic root of 85859261 is about 441.1595808063.

The spelling of 85859261 in words is "eighty-five million, eight hundred fifty-nine thousand, two hundred sixty-one".