90933745 has 16 divisors (see below), whose sum is σ = 124864128. Its totient is φ = 62277120.

The previous prime is 90933727. The next prime is 90933749. The reversal of 90933745 is 54733909.

It is not a de Polignac number, because 90933745 - 2⁷ = 90933617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90933698 and 90933707.

It is not an unprimeable number, because it can be changed into a prime (90933749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52737 + ... + 54433.

It is an arithmetic number, because the mean of its divisors is an integer number (7804008).

Almost surely, 2^90933745 is an apocalyptic number.

It is an amenable number.

90933745 is a deficient number, since it is larger than the sum of its proper divisors (33930383).

90933745 is a wasteful number, since it uses less digits than its factorization.

90933745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 90933745 is about 9535.9186762472. The cubic root of 90933745 is about 449.6849564452.

The spelling of 90933745 in words is "ninety million, nine hundred thirty-three thousand, seven hundred forty-five".