91896743 has 2 divisors, whose sum is σ = 91896744. Its totient is φ = 91896742.

The previous prime is 91896697. The next prime is 91896773. The reversal of 91896743 is 34769819.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91896743 is a prime.

It is a super-2 number, since 2×91896743² = 16890022748016098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91896773) 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, 45948371 + 45948372.

It is an arithmetic number, because the mean of its divisors is an integer number (45948372).

Almost surely, 2^91896743 is an apocalyptic number.

91896743 is a deficient number, since it is larger than the sum of its proper divisors (1).

91896743 is an equidigital number, since it uses as much as digits as its factorization.

91896743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 91896743 is about 9586.2788922501. The cubic root of 91896743 is about 451.2667893785.

The spelling of 91896743 in words is "ninety-one million, eight hundred ninety-six thousand, seven hundred forty-three".