90362387 has 4 divisors (see below), whose sum is σ = 91294056. Its totient is φ = 89430720.

The previous prime is 90362383. The next prime is 90362471. The reversal of 90362387 is 78326309.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90362387 - 2² = 90362383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90362387.

It is not an unprimeable number, because it can be changed into a prime (90362381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465689 + ... + 465882.

It is an arithmetic number, because the mean of its divisors is an integer number (22823514).

Almost surely, 2^90362387 is an apocalyptic number.

90362387 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

90362387 is a deficient number, since it is larger than the sum of its proper divisors (931669).

90362387 is an equidigital number, since it uses as much as digits as its factorization.

90362387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931668.

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

The square root of 90362387 is about 9505.9132649104. The cubic root of 90362387 is about 448.7411516891.

The spelling of 90362387 in words is "ninety million, three hundred sixty-two thousand, three hundred eighty-seven".