90008387 has 8 divisors (see below), whose sum is σ = 108917856. Its totient is φ = 72611712.

The previous prime is 90008371. The next prime is 90008393. The reversal of 90008387 is 78380009.

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 90008387 - 2⁴ = 90008371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90008327) 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, 378068 + ... + 378305.

It is an arithmetic number, because the mean of its divisors is an integer number (13614732).

Almost surely, 2^90008387 is an apocalyptic number.

90008387 is a deficient number, since it is larger than the sum of its proper divisors (18909469).

90008387 is a wasteful number, since it uses less digits than its factorization.

90008387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756397.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 90008387 is about 9487.2750039197. The cubic root of 90008387 is about 448.1543947943.

The spelling of 90008387 in words is "ninety million, eight thousand, three hundred eighty-seven".