90973211 has 16 divisors (see below), whose sum is σ = 108793344. Its totient is φ = 74378304.

The previous prime is 90973147. The next prime is 90973213. The reversal of 90973211 is 11237909.

It is a happy number.

It is not a de Polignac number, because 90973211 - 2⁶ = 90973147 is a prime.

It is a super-2 number, since 2×90973211² = 16552250239301042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90973213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87551 + ... + 88583.

It is an arithmetic number, because the mean of its divisors is an integer number (6799584).

Almost surely, 2^90973211 is an apocalyptic number.

90973211 is a deficient number, since it is larger than the sum of its proper divisors (17820133).

90973211 is a wasteful number, since it uses less digits than its factorization.

90973211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 90973211 is about 9537.9877856915. The cubic root of 90973211 is about 449.7500027036.

The spelling of 90973211 in words is "ninety million, nine hundred seventy-three thousand, two hundred eleven".