90193366 has 4 divisors (see below), whose sum is σ = 135290052. Its totient is φ = 45096682.

The previous prime is 90193351. The next prime is 90193387. The reversal of 90193366 is 66339109.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22548340 + ... + 22548343.

It is an arithmetic number, because the mean of its divisors is an integer number (33822513).

Almost surely, 2^90193366 is an apocalyptic number.

90193366 is a deficient number, since it is larger than the sum of its proper divisors (45096686).

90193366 is a wasteful number, since it uses less digits than its factorization.

90193366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45096685.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 90193366 is about 9497.0187953905. The cubic root of 90193366 is about 448.4611900081.

The spelling of 90193366 in words is "ninety million, one hundred ninety-three thousand, three hundred sixty-six".