90867 has 8 divisors (see below), whose sum is σ = 138496. Its totient is φ = 51912.

The previous prime is 90863. The next prime is 90887. The reversal of 90867 is 76809.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90867 - 2² = 90863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2143 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (17312).

2⁹⁰⁸⁶⁷ is an apocalyptic number.

90867 is a deficient number, since it is larger than the sum of its proper divisors (47629).

90867 is a wasteful number, since it uses less digits than its factorization.

90867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 90867 is about 301.4415366203. The cubic root of 90867 is about 44.9574907204.

The spelling of 90867 in words is "ninety thousand, eight hundred sixty-seven".