90670 has 8 divisors (see below), whose sum is σ = 163224. Its totient is φ = 36264.

The previous prime is 90659. The next prime is 90677. The reversal of 90670 is 7609.

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

It is an Ulam number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90677) by changing a digit.

90670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4524 + ... + 4543.

It is an arithmetic number, because the mean of its divisors is an integer number (20403).

2⁹⁰⁶⁷⁰ is an apocalyptic number.

90670 is a deficient number, since it is larger than the sum of its proper divisors (72554).

90670 is a wasteful number, since it uses less digits than its factorization.

90670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 90670 is about 301.1145961258. The cubic root of 90670 is about 44.9249778764.

The spelling of 90670 in words is "ninety thousand, six hundred seventy".