91939746 has 64 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 27760320.

The previous prime is 91939733. The next prime is 91939747. The reversal of 91939746 is 64793919.

It is a junction number, because it is equal to n+sod(n) for n = 91939695 and 91939704.

It is not an unprimeable number, because it can be changed into a prime (91939747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299325 + ... + 299631.

It is an arithmetic number, because the mean of its divisors is an integer number (3160080).

Almost surely, 2^91939746 is an apocalyptic number.

91939746 is an abundant number, since it is smaller than the sum of its proper divisors (110305374).

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

91939746 is a wasteful number, since it uses less digits than its factorization.

91939746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its digits is 367416, while the sum is 48.

The square root of 91939746 is about 9588.5215753003. The cubic root of 91939746 is about 451.3371683673.

The spelling of 91939746 in words is "ninety-one million, nine hundred thirty-nine thousand, seven hundred forty-six".