91092371 has 2 divisors, whose sum is σ = 91092372. Its totient is φ = 91092370.

The previous prime is 91092349. The next prime is 91092383. The reversal of 91092371 is 17329019.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91092371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91092871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45546185 + 45546186.

It is an arithmetic number, because the mean of its divisors is an integer number (45546186).

Almost surely, 2^91092371 is an apocalyptic number.

91092371 is a deficient number, since it is larger than the sum of its proper divisors (1).

91092371 is an equidigital number, since it uses as much as digits as its factorization.

91092371 is an odious number, because the sum of its binary digits is odd.

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

The square root of 91092371 is about 9544.2323421006. The cubic root of 91092371 is about 449.9462833000.

The spelling of 91092371 in words is "ninety-one million, ninety-two thousand, three hundred seventy-one".