91822063 has 2 divisors, whose sum is σ = 91822064. Its totient is φ = 91822062.

The previous prime is 91822061. The next prime is 91822097. The reversal of 91822063 is 36022819.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91822063 - 2¹ = 91822061 is a prime.

Together with 91822061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91822061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45911031 + 45911032.

It is an arithmetic number, because the mean of its divisors is an integer number (45911032).

Almost surely, 2^91822063 is an apocalyptic number.

91822063 is a deficient number, since it is larger than the sum of its proper divisors (1).

91822063 is an equidigital number, since it uses as much as digits as its factorization.

91822063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 91822063 is about 9582.3829499765. The cubic root of 91822063 is about 451.1445154153.

The spelling of 91822063 in words is "ninety-one million, eight hundred twenty-two thousand, sixty-three".