85149888 has 28 divisors (see below), whose sum is σ = 225292920. Its totient is φ = 28383232.

The previous prime is 85149881. The next prime is 85149893. The reversal of 85149888 is 88894158.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 85149888.

It is not an unprimeable number, because it can be changed into a prime (85149881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221553 + ... + 221936.

Almost surely, 2^85149888 is an apocalyptic number.

It is an amenable number.

85149888 is an abundant number, since it is smaller than the sum of its proper divisors (140143032).

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

85149888 is a wasteful number, since it uses less digits than its factorization.

85149888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443504 (or 443494 counting only the distinct ones).

The product of its digits is 737280, while the sum is 51.

The square root of 85149888 is about 9227.6696949988. The cubic root of 85149888 is about 439.9412593760.

The spelling of 85149888 in words is "eighty-five million, one hundred forty-nine thousand, eight hundred eighty-eight".