90732930 has 32 divisors (see below), whose sum is σ = 227228544. Its totient is φ = 23143296.

The previous prime is 90732883. The next prime is 90732989. The reversal of 90732930 is 3923709.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90732891 and 90732900.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65059 + ... + 66438.

It is an arithmetic number, because the mean of its divisors is an integer number (7100892).

Almost surely, 2^90732930 is an apocalyptic number.

90732930 is an abundant number, since it is smaller than the sum of its proper divisors (136495614).

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

90732930 is a wasteful number, since it uses less digits than its factorization.

90732930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131530.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 90732930 is about 9525.3834568483. The cubic root of 90732930 is about 449.3536894677.

The spelling of 90732930 in words is "ninety million, seven hundred thirty-two thousand, nine hundred thirty".