90123267 has 32 divisors (see below), whose sum is σ = 134265600. Its totient is φ = 53419392.

The previous prime is 90123259. The next prime is 90123277. The reversal of 90123267 is 76232109.

It is not a de Polignac number, because 90123267 - 2³ = 90123259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90123247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121584 + ... + 122322.

It is an arithmetic number, because the mean of its divisors is an integer number (4195800).

Almost surely, 2^90123267 is an apocalyptic number.

90123267 is a deficient number, since it is larger than the sum of its proper divisors (44142333).

90123267 is a wasteful number, since it uses less digits than its factorization.

90123267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 90123267 is about 9493.3274988278. The cubic root of 90123267 is about 448.3449773636.

The spelling of 90123267 in words is "ninety million, one hundred twenty-three thousand, two hundred sixty-seven".