90667199 has 12 divisors (see below), whose sum is σ = 106461864. Its totient is φ = 76983984.

The previous prime is 90667193. The next prime is 90667201. The reversal of 90667199 is 99176609.

It is a happy number.

It is not a de Polignac number, because 90667199 - 2¹⁶ = 90601663 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90667193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3404 + ... + 13889.

It is an arithmetic number, because the mean of its divisors is an integer number (8871822).

Almost surely, 2^90667199 is an apocalyptic number.

90667199 is a deficient number, since it is larger than the sum of its proper divisors (15794665).

90667199 is a wasteful number, since it uses less digits than its factorization.

90667199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17414 (or 17407 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 90667199 is about 9521.9325244406. The cubic root of 90667199 is about 449.2451526048.

The spelling of 90667199 in words is "ninety million, six hundred sixty-seven thousand, one hundred ninety-nine".