90930385 has 32 divisors (see below), whose sum is σ = 140152320. Its totient is φ = 55047168.

The previous prime is 90930377. The next prime is 90930397. The reversal of 90930385 is 58303909.

It is a cyclic number.

It is not a de Polignac number, because 90930385 - 2³ = 90930377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6121 + ... + 14809.

It is an arithmetic number, because the mean of its divisors is an integer number (4379760).

Almost surely, 2^90930385 is an apocalyptic number.

It is an amenable number.

90930385 is a deficient number, since it is larger than the sum of its proper divisors (49221935).

90930385 is a wasteful number, since it uses less digits than its factorization.

90930385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 90930385 is about 9535.7424986207. The cubic root of 90930385 is about 449.6794177604.

The spelling of 90930385 in words is "ninety million, nine hundred thirty thousand, three hundred eighty-five".