91004983 has 2 divisors, whose sum is σ = 91004984. Its totient is φ = 91004982.

The previous prime is 91004957. The next prime is 91004989. The reversal of 91004983 is 38940019.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91004983 - 2²¹ = 88907831 is a prime.

It is equal to p_5271928 and since 91004983 and 5271928 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91004989) 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, 45502491 + 45502492.

It is an arithmetic number, because the mean of its divisors is an integer number (45502492).

Almost surely, 2^91004983 is an apocalyptic number.

91004983 is a deficient number, since it is larger than the sum of its proper divisors (1).

91004983 is an equidigital number, since it uses as much as digits as its factorization.

91004983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 91004983 is about 9539.6531907612. The cubic root of 91004983 is about 449.8023543565.

The spelling of 91004983 in words is "ninety-one million, four thousand, nine hundred eighty-three".