91488983 has 2 divisors, whose sum is σ = 91488984. Its totient is φ = 91488982.

The previous prime is 91488973. The next prime is 91488989. The reversal of 91488983 is 38988419.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91488983 - 2⁶ = 91488919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91488989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45744491 + 45744492.

It is an arithmetic number, because the mean of its divisors is an integer number (45744492).

Almost surely, 2^91488983 is an apocalyptic number.

91488983 is a deficient number, since it is larger than the sum of its proper divisors (1).

91488983 is an equidigital number, since it uses as much as digits as its factorization.

91488983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 50.

The square root of 91488983 is about 9564.9873497041. The cubic root of 91488983 is about 450.5983530045.

The spelling of 91488983 in words is "ninety-one million, four hundred eighty-eight thousand, nine hundred eighty-three".