90207 has 16 divisors (see below), whose sum is σ = 144480. Its totient is φ = 55296.

The previous prime is 90203. The next prime is 90217. The reversal of 90207 is 70209.

It is not a de Polignac number, because 90207 - 2² = 90203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90207.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 90207.

It is not an unprimeable number, because it can be changed into a prime (90203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223 + ... + 479.

It is an arithmetic number, because the mean of its divisors is an integer number (9030).

2⁹⁰²⁰⁷ is an apocalyptic number.

90207 is a deficient number, since it is larger than the sum of its proper divisors (54273).

90207 is a wasteful number, since it uses less digits than its factorization.

90207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 90207 is about 300.3448018528. The cubic root of 90207 is about 44.8483785949.

The spelling of 90207 in words is "ninety thousand, two hundred seven".