90321736 has 32 divisors (see below), whose sum is σ = 181506240. Its totient is φ = 42026688.

The previous prime is 90321719. The next prime is 90321769. The reversal of 90321736 is 63712309.

It is a junction number, because it is equal to n+sod(n) for n = 90321698 and 90321707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175 + ... + 13441.

It is an arithmetic number, because the mean of its divisors is an integer number (5672070).

Almost surely, 2^90321736 is an apocalyptic number.

It is an amenable number.

90321736 is an abundant number, since it is smaller than the sum of its proper divisors (91184504).

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

90321736 is a wasteful number, since it uses less digits than its factorization.

90321736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333 (or 13329 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 90321736 is about 9503.7748289824. The cubic root of 90321736 is about 448.6738504100.

The spelling of 90321736 in words is "ninety million, three hundred twenty-one thousand, seven hundred thirty-six".