91282397 has 2 divisors, whose sum is σ = 91282398. Its totient is φ = 91282396.

The previous prime is 91282391. The next prime is 91282409. The reversal of 91282397 is 79328219.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91278916 + 3481 = 9554^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 91282397 - 2¹⁰ = 91281373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91282391) 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, 45641198 + 45641199.

It is an arithmetic number, because the mean of its divisors is an integer number (45641199).

Almost surely, 2^91282397 is an apocalyptic number.

It is an amenable number.

91282397 is a deficient number, since it is larger than the sum of its proper divisors (1).

91282397 is an equidigital number, since it uses as much as digits as its factorization.

91282397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 91282397 is about 9554.1821732684. The cubic root of 91282397 is about 450.2589406827.

The spelling of 91282397 in words is "ninety-one million, two hundred eighty-two thousand, three hundred ninety-seven".