90900703836 has 36 divisors (see below), whose sum is σ = 229811891400. Its totient is φ = 30295604448.

The previous prime is 90900703801. The next prime is 90900703837. The reversal of 90900703836 is 63830700909.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×90900703836² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90900703791 and 90900703800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90900703837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50130 + ... + 429318.

It is an arithmetic number, because the mean of its divisors is an integer number (6383663650).

Almost surely, 2^90900703836 is an apocalyptic number.

It is an amenable number.

90900703836 is an abundant number, since it is smaller than the sum of its proper divisors (138911187564).

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

90900703836 is a wasteful number, since it uses less digits than its factorization.

90900703836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385858 (or 385853 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 90900703836 in words is "ninety billion, nine hundred million, seven hundred three thousand, eight hundred thirty-six".