91482073 has 2 divisors, whose sum is σ = 91482074. Its totient is φ = 91482072.

The previous prime is 91482059. The next prime is 91482077. The reversal of 91482073 is 37028419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50879689 + 40602384 = 7133^2 + 6372^2 .

It is an emirp because it is prime and its reverse (37028419) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91482073 is a prime.

It is not a weakly prime, because it can be changed into another prime (91482077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45741036 + 45741037.

It is an arithmetic number, because the mean of its divisors is an integer number (45741037).

Almost surely, 2^91482073 is an apocalyptic number.

It is an amenable number.

91482073 is a deficient number, since it is larger than the sum of its proper divisors (1).

91482073 is an equidigital number, since it uses as much as digits as its factorization.

91482073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 91482073 is about 9564.6261296509. The cubic root of 91482073 is about 450.5870084218.

The spelling of 91482073 in words is "ninety-one million, four hundred eighty-two thousand, seventy-three".