90238763 has 8 divisors (see below), whose sum is σ = 90848880. Its totient is φ = 89631360.

The previous prime is 90238727. The next prime is 90238781. The reversal of 90238763 is 36783209.

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 90238763 - 2⁶ = 90238699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90238783) 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, 172943 + ... + 173463.

It is an arithmetic number, because the mean of its divisors is an integer number (11356110).

Almost surely, 2^90238763 is an apocalyptic number.

90238763 is a deficient number, since it is larger than the sum of its proper divisors (610117).

90238763 is a wasteful number, since it uses less digits than its factorization.

90238763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 90238763 is about 9499.4085605368. The cubic root of 90238763 is about 448.5364186669.

The spelling of 90238763 in words is "ninety million, two hundred thirty-eight thousand, seven hundred sixty-three".