85177480 has 32 divisors (see below), whose sum is σ = 202924440. Its totient is φ = 32066560.

The previous prime is 85177447. The next prime is 85177483. The reversal of 85177480 is 8477158.

It can be written as a sum of positive squares in 4 ways, for example, as 55562116 + 29615364 = 7454^2 + 5442^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (85177483) by changing a digit.

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, 61951 + ... + 63310.

Almost surely, 2^85177480 is an apocalyptic number.

It is an amenable number.

85177480 is an abundant number, since it is smaller than the sum of its proper divisors (117746960).

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

85177480 is a wasteful number, since it uses less digits than its factorization.

85177480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125289 (or 125285 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 85177480 is about 9229.1646425882. The cubic root of 85177480 is about 439.9887738183.

The spelling of 85177480 in words is "eighty-five million, one hundred seventy-seven thousand, four hundred eighty".