85656461 has 16 divisors (see below), whose sum is σ = 95251200. Its totient is φ = 76377600.

The previous prime is 85656457. The next prime is 85656463. The reversal of 85656461 is 16465658.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85656461 - 2² = 85656457 is a prime.

It is a super-2 number, since 2×85656461² = 14674058622089042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85656463) 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, 209225 + ... + 209633.

It is an arithmetic number, because the mean of its divisors is an integer number (5953200).

Almost surely, 2^85656461 is an apocalyptic number.

It is an amenable number.

85656461 is a deficient number, since it is larger than the sum of its proper divisors (9594739).

85656461 is a wasteful number, since it uses less digits than its factorization.

85656461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its digits is 172800, while the sum is 41.

The square root of 85656461 is about 9255.0775793615. The cubic root of 85656461 is about 440.8119666016.

The spelling of 85656461 in words is "eighty-five million, six hundred fifty-six thousand, four hundred sixty-one".