90849136 has 30 divisors (see below), whose sum is σ = 204759960. Its totient is φ = 38935008.

The previous prime is 90849091. The next prime is 90849137. The reversal of 90849136 is 63194809.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90849137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57156 + ... + 58723.

It is an arithmetic number, because the mean of its divisors is an integer number (6825332).

Almost surely, 2^90849136 is an apocalyptic number.

It is an amenable number.

90849136 is an abundant number, since it is smaller than the sum of its proper divisors (113910824).

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

90849136 is a wasteful number, since it uses less digits than its factorization.

90849136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115901 (or 115888 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 90849136 is about 9531.4813119473. The cubic root of 90849136 is about 449.5454438769.

The spelling of 90849136 in words is "ninety million, eight hundred forty-nine thousand, one hundred thirty-six".