90492783 has 8 divisors (see below), whose sum is σ = 122933808. Its totient is φ = 59190144.

The previous prime is 90492761. The next prime is 90492799. The reversal of 90492783 is 38729409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90492783 - 2⁹ = 90492271 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90492733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284410 + ... + 284727.

It is an arithmetic number, because the mean of its divisors is an integer number (15366726).

Almost surely, 2^90492783 is an apocalyptic number.

90492783 is a deficient number, since it is larger than the sum of its proper divisors (32441025).

90492783 is a wasteful number, since it uses less digits than its factorization.

90492783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569193.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 90492783 is about 9512.7694705590. The cubic root of 90492783 is about 448.9568975313.

The spelling of 90492783 in words is "ninety million, four hundred ninety-two thousand, seven hundred eighty-three".