90785793 has 16 divisors (see below), whose sum is σ = 140237696. Its totient is φ = 51166080.

The previous prime is 90785777. The next prime is 90785803. The reversal of 90785793 is 39758709.

It is not a de Polignac number, because 90785793 - 2⁴ = 90785777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90785293) 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, 28078 + ... + 31143.

It is an arithmetic number, because the mean of its divisors is an integer number (8764856).

Almost surely, 2^90785793 is an apocalyptic number.

It is an amenable number.

90785793 is a deficient number, since it is larger than the sum of its proper divisors (49451903).

90785793 is a wasteful number, since it uses less digits than its factorization.

90785793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59304.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 90785793 is about 9528.1579017143. The cubic root of 90785793 is about 449.4409403050.

The spelling of 90785793 in words is "ninety million, seven hundred eighty-five thousand, seven hundred ninety-three".