90970 has 16 divisors (see below), whose sum is σ = 178848. Its totient is φ = 33040.

The previous prime is 90947. The next prime is 90971. The reversal of 90970 is 7909.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (90971) 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, 304 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (11178).

2⁹⁰⁹⁷⁰ is an apocalyptic number.

90970 is a deficient number, since it is larger than the sum of its proper divisors (87878).

90970 is a wasteful number, since it uses less digits than its factorization.

90970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 90970 is about 301.6123339653. The cubic root of 90970 is about 44.9744711167.

It can be divided in two parts, 909 and 70, that added together give a palindrome (979).

The spelling of 90970 in words is "ninety thousand, nine hundred seventy".