91233673 has 2 divisors, whose sum is σ = 91233674. Its totient is φ = 91233672.

The previous prime is 91233671. The next prime is 91233677. The reversal of 91233673 is 37633219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88962624 + 2271049 = 9432^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 91233673 - 2¹ = 91233671 is a prime.

Together with 91233671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (91233671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45616836 + 45616837.

It is an arithmetic number, because the mean of its divisors is an integer number (45616837).

Almost surely, 2^91233673 is an apocalyptic number.

It is an amenable number.

91233673 is a deficient number, since it is larger than the sum of its proper divisors (1).

91233673 is an equidigital number, since it uses as much as digits as its factorization.

91233673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 34.

The square root of 91233673 is about 9551.6319548023. The cubic root of 91233673 is about 450.1788145325.

The spelling of 91233673 in words is "ninety-one million, two hundred thirty-three thousand, six hundred seventy-three".