91443343 has 2 divisors, whose sum is σ = 91443344. Its totient is φ = 91443342.

The previous prime is 91443307. The next prime is 91443367. The reversal of 91443343 is 34334419.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91443343 - 2⁹ = 91442831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91443383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45721671 + 45721672.

It is an arithmetic number, because the mean of its divisors is an integer number (45721672).

Almost surely, 2^91443343 is an apocalyptic number.

91443343 is a deficient number, since it is larger than the sum of its proper divisors (1).

91443343 is an equidigital number, since it uses as much as digits as its factorization.

91443343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 91443343 is about 9562.6012674376. The cubic root of 91443343 is about 450.5234123620.

The spelling of 91443343 in words is "ninety-one million, four hundred forty-three thousand, three hundred forty-three".