85980856 has 32 divisors (see below), whose sum is σ = 179222400. Its totient is φ = 38401920.

The previous prime is 85980841. The next prime is 85980857. The reversal of 85980856 is 65808958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85980857) 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 7 ways as a sum of consecutive naturals, for example, 10111 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (5600700).

Almost surely, 2^85980856 is an apocalyptic number.

It is an amenable number.

85980856 is an abundant number, since it is smaller than the sum of its proper divisors (93241544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85980856 is a wasteful number, since it uses less digits than its factorization.

85980856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26719 (or 26715 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 49.

The square root of 85980856 is about 9272.5862627425. The cubic root of 85980856 is about 441.3677412125.

The spelling of 85980856 in words is "eighty-five million, nine hundred eighty thousand, eight hundred fifty-six".