85176990 has 24 divisors (see below), whose sum is σ = 221460408. Its totient is φ = 22713840.

The previous prime is 85176979. The next prime is 85177009. The reversal of 85176990 is 9967158.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473116 + ... + 473295.

It is an arithmetic number, because the mean of its divisors is an integer number (9227517).

Almost surely, 2^85176990 is an apocalyptic number.

85176990 is an abundant number, since it is smaller than the sum of its proper divisors (136283418).

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

85176990 is a wasteful number, since it uses less digits than its factorization.

85176990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946424 (or 946421 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 85176990 is about 9229.1380962688. The cubic root of 85176990 is about 439.9879301097.

It can be divided in two parts, 851 and 76990, that added together give a square (77841 = 279²).

The spelling of 85176990 in words is "eighty-five million, one hundred seventy-six thousand, nine hundred ninety".