90763021 has 8 divisors (see below), whose sum is σ = 92275200. Its totient is φ = 89260080.

The previous prime is 90762967. The next prime is 90763027. The reversal of 90763021 is 12036709.

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

It is a cyclic number.

It is not a de Polignac number, because 90763021 - 2²¹ = 88665869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90763027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19116 + ... + 23386.

It is an arithmetic number, because the mean of its divisors is an integer number (11534400).

Almost surely, 2^90763021 is an apocalyptic number.

It is an amenable number.

90763021 is a deficient number, since it is larger than the sum of its proper divisors (1512179).

90763021 is a wasteful number, since it uses less digits than its factorization.

90763021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 90763021 is about 9526.9628423753. The cubic root of 90763021 is about 449.4033590763.

The spelling of 90763021 in words is "ninety million, seven hundred sixty-three thousand, twenty-one".