91082739 has 16 divisors (see below), whose sum is σ = 132833664. Its totient is φ = 55056000.

The previous prime is 91082723. The next prime is 91082741. The reversal of 91082739 is 93728019.

It is not a de Polignac number, because 91082739 - 2⁴ = 91082723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91082697 and 91082706.

It is not an unprimeable number, because it can be changed into a prime (91082759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9792 + ... + 16674.

It is an arithmetic number, because the mean of its divisors is an integer number (8302104).

Almost surely, 2^91082739 is an apocalyptic number.

91082739 is a deficient number, since it is larger than the sum of its proper divisors (41750925).

91082739 is a wasteful number, since it uses less digits than its factorization.

91082739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 91082739 is about 9543.7277308188. The cubic root of 91082739 is about 449.9304238110.

The spelling of 91082739 in words is "ninety-one million, eighty-two thousand, seven hundred thirty-nine".