90696191 has 2 divisors, whose sum is σ = 90696192. Its totient is φ = 90696190.

The previous prime is 90696169. The next prime is 90696211. The reversal of 90696191 is 19169609.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90696191 - 2⁶ = 90696127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90696121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45348095 + 45348096.

It is an arithmetic number, because the mean of its divisors is an integer number (45348096).

Almost surely, 2^90696191 is an apocalyptic number.

90696191 is a deficient number, since it is larger than the sum of its proper divisors (1).

90696191 is an equidigital number, since it uses as much as digits as its factorization.

90696191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 90696191 is about 9523.4547827981. The cubic root of 90696191 is about 449.2930314687.

The spelling of 90696191 in words is "ninety million, six hundred ninety-six thousand, one hundred ninety-one".