90671191 has 8 divisors (see below), whose sum is σ = 97883744. Its totient is φ = 83492640.

The previous prime is 90671177. The next prime is 90671233. The reversal of 90671191 is 19117609.

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

It is a cyclic number.

It is not a de Polignac number, because 90671191 - 2⁵ = 90671159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90671101) 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, 2811 + ... + 13756.

It is an arithmetic number, because the mean of its divisors is an integer number (12235468).

Almost surely, 2^90671191 is an apocalyptic number.

90671191 is a deficient number, since it is larger than the sum of its proper divisors (7212553).

90671191 is a wasteful number, since it uses less digits than its factorization.

90671191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17001.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 90671191 is about 9522.1421434465. The cubic root of 90671191 is about 449.2517458026.

The spelling of 90671191 in words is "ninety million, six hundred seventy-one thousand, one hundred ninety-one".