91829669 has 2 divisors, whose sum is σ = 91829670. Its totient is φ = 91829668.

The previous prime is 91829653. The next prime is 91829707. The reversal of 91829669 is 96692819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81685444 + 10144225 = 9038^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 91829669 - 2⁴ = 91829653 is a prime.

It is a super-2 number, since 2×91829669² = 16865376217299122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91829629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45914834 + 45914835.

It is an arithmetic number, because the mean of its divisors is an integer number (45914835).

Almost surely, 2^91829669 is an apocalyptic number.

It is an amenable number.

91829669 is a deficient number, since it is larger than the sum of its proper divisors (1).

91829669 is an equidigital number, since it uses as much as digits as its factorization.

91829669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 50.

The square root of 91829669 is about 9582.7798158989. The cubic root of 91829669 is about 451.1569717914.

The spelling of 91829669 in words is "ninety-one million, eight hundred twenty-nine thousand, six hundred sixty-nine".