91828642 has 16 divisors (see below), whose sum is σ = 139277952. Its totient is φ = 45405360.

The previous prime is 91828619. The next prime is 91828651. The reversal of 91828642 is 24682819.

It is a junction number, because it is equal to n+sod(n) for n = 91828595 and 91828604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120928 + ... + 121684.

It is an arithmetic number, because the mean of its divisors is an integer number (8704872).

Almost surely, 2^91828642 is an apocalyptic number.

91828642 is a deficient number, since it is larger than the sum of its proper divisors (47449310).

91828642 is a wasteful number, since it uses less digits than its factorization.

91828642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353.

The product of its digits is 55296, while the sum is 40.

The square root of 91828642 is about 9582.7262300454. The cubic root of 91828642 is about 451.1552899096.

The spelling of 91828642 in words is "ninety-one million, eight hundred twenty-eight thousand, six hundred forty-two".