85477866 has 32 divisors (see below), whose sum is σ = 178875648. Its totient is φ = 27202560.

The previous prime is 85477849. The next prime is 85477871. The reversal of 85477866 is 66877458.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7866 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (5589864).

Almost surely, 2^85477866 is an apocalyptic number.

85477866 is an abundant number, since it is smaller than the sum of its proper divisors (93397782).

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

85477866 is a wasteful number, since it uses less digits than its factorization.

85477866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486.

The product of its digits is 2257920, while the sum is 51.

The square root of 85477866 is about 9245.4240573378. The cubic root of 85477866 is about 440.5053869178.

The spelling of 85477866 in words is "eighty-five million, four hundred seventy-seven thousand, eight hundred sixty-six".