91314829 has 2 divisors, whose sum is σ = 91314830. Its totient is φ = 91314828.

The previous prime is 91314793. The next prime is 91314869. The reversal of 91314829 is 92841319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86452804 + 4862025 = 9298^2 + 2205^2 .

It is a cyclic number.

It is not a de Polignac number, because 91314829 - 2²⁵ = 57760397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91314869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45657414 + 45657415.

It is an arithmetic number, because the mean of its divisors is an integer number (45657415).

Almost surely, 2^91314829 is an apocalyptic number.

It is an amenable number.

91314829 is a deficient number, since it is larger than the sum of its proper divisors (1).

91314829 is an equidigital number, since it uses as much as digits as its factorization.

91314829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 91314829 is about 9555.8792897357. The cubic root of 91314829 is about 450.3122589908.

The spelling of 91314829 in words is "ninety-one million, three hundred fourteen thousand, eight hundred twenty-nine".