85499100 has 54 divisors (see below), whose sum is σ = 267995000. Its totient is φ = 22799520.

The previous prime is 85499041. The next prime is 85499101. The reversal of 85499100 is 199458.

85499100 is a `hidden beast` number, since 8 + 549 + 9 + 100 = 666.

It is a super-2 number, since 2×85499100² = 14620192201620000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85499101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46600 + ... + 48399.

Almost surely, 2^85499100 is an apocalyptic number.

It is an amenable number.

85499100 is an abundant number, since it is smaller than the sum of its proper divisors (182495900).

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

85499100 is a wasteful number, since it uses less digits than its factorization.

85499100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95019 (or 95009 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 85499100 is about 9246.5723378991. The cubic root of 85499100 is about 440.5418599738.

The spelling of 85499100 in words is "eighty-five million, four hundred ninety-nine thousand, one hundred".