900899136 has 168 divisors, whose sum is σ = 2737225920. Its totient is φ = 282507264.

The previous prime is 900899099. The next prime is 900899137. The reversal of 900899136 is 631998009.

It is a junction number, because it is equal to n+sod(n) for n = 900899091 and 900899100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900899137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2878116 + ... + 2878428.

Almost surely, 2^900899136 is an apocalyptic number.

900899136 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 900899136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368612960).

900899136 is an abundant number, since it is smaller than the sum of its proper divisors (1836326784).

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

900899136 is a wasteful number, since it uses less digits than its factorization.

900899136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 900899136 is about 30014.9818590650. The cubic root of 900899136 is about 965.8107984326.

It can be divided in two parts, 90089 and 9136, that added together give a square (99225 = 315²).

The spelling of 900899136 in words is "nine hundred million, eight hundred ninety-nine thousand, one hundred thirty-six".