85477272 has 32 divisors (see below), whose sum is σ = 213937200. Its totient is φ = 28459904.

The previous prime is 85477267. The next prime is 85477303. The reversal of 85477272 is 27277458.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29254 + ... + 32042.

Almost surely, 2^85477272 is an apocalyptic number.

It is an amenable number.

85477272 is an abundant number, since it is smaller than the sum of its proper divisors (128459928).

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

85477272 is a wasteful number, since it uses less digits than its factorization.

85477272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075 (or 4071 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The square root of 85477272 is about 9245.3919332822. The cubic root of 85477272 is about 440.5043665336.

The spelling of 85477272 in words is "eighty-five million, four hundred seventy-seven thousand, two hundred seventy-two".