91434349 has 2 divisors, whose sum is σ = 91434350. Its totient is φ = 91434348.

The previous prime is 91434341. The next prime is 91434353. The reversal of 91434349 is 94343419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87553449 + 3880900 = 9357^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 91434349 - 2³ = 91434341 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 (91434341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45717174 + 45717175.

It is an arithmetic number, because the mean of its divisors is an integer number (45717175).

Almost surely, 2^91434349 is an apocalyptic number.

It is an amenable number.

91434349 is a deficient number, since it is larger than the sum of its proper divisors (1).

91434349 is an equidigital number, since it uses as much as digits as its factorization.

91434349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 91434349 is about 9562.1309863440. The cubic root of 91434349 is about 450.5086413199.

The spelling of 91434349 in words is "ninety-one million, four hundred thirty-four thousand, three hundred forty-nine".