91482971 has 2 divisors, whose sum is σ = 91482972. Its totient is φ = 91482970.

The previous prime is 91482959. The next prime is 91482977. The reversal of 91482971 is 17928419.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91482971 is a prime.

It is not a weakly prime, because it can be changed into another prime (91482977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45741485 + 45741486.

It is an arithmetic number, because the mean of its divisors is an integer number (45741486).

Almost surely, 2^91482971 is an apocalyptic number.

91482971 is a deficient number, since it is larger than the sum of its proper divisors (1).

91482971 is an equidigital number, since it uses as much as digits as its factorization.

91482971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The square root of 91482971 is about 9564.6730733465. The cubic root of 91482971 is about 450.5884827573.

The spelling of 91482971 in words is "ninety-one million, four hundred eighty-two thousand, nine hundred seventy-one".