91829868 has 36 divisors (see below), whose sum is σ = 232024968. Its totient is φ = 28254720.

The previous prime is 91829851. The next prime is 91829879. The reversal of 91829868 is 86892819.

It is a self number, because there is not a number n which added to its sum of digits gives 91829868.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20613 + ... + 24668.

It is an arithmetic number, because the mean of its divisors is an integer number (6445138).

Almost surely, 2^91829868 is an apocalyptic number.

It is an amenable number.

91829868 is an abundant number, since it is smaller than the sum of its proper divisors (140195100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91829868 is a wasteful number, since it uses less digits than its factorization.

91829868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45314 (or 45299 counting only the distinct ones).

The product of its digits is 497664, while the sum is 51.

The square root of 91829868 is about 9582.7901991017. The cubic root of 91829868 is about 451.1572976852.

The spelling of 91829868 in words is "ninety-one million, eight hundred twenty-nine thousand, eight hundred sixty-eight".