90499850 has 96 divisors (see below), whose sum is σ = 209510400. Its totient is φ = 28382400.

The previous prime is 90499847. The next prime is 90499859. The reversal of 90499850 is 5899409.

90499850 = 758² + 759² + ... + 890².

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90499859) 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 47 ways as a sum of consecutive naturals, for example, 205931 + ... + 206369.

It is an arithmetic number, because the mean of its divisors is an integer number (2182400).

Almost surely, 2^90499850 is an apocalyptic number.

90499850 is an abundant number, since it is smaller than the sum of its proper divisors (119010550).

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

90499850 is a wasteful number, since it uses less digits than its factorization.

90499850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 90499850 is about 9513.1409113920. The cubic root of 90499850 is about 448.9685842673.

The spelling of 90499850 in words is "ninety million, four hundred ninety-nine thousand, eight hundred fifty".