91619682 has 64 divisors (see below), whose sum is σ = 232270848. Its totient is φ = 23400000.

The previous prime is 91619641. The next prime is 91619711. The reversal of 91619682 is 28691619.

It is a super-2 number, since 2×91619682² = 16788332259562248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26557 + ... + 29807.

It is an arithmetic number, because the mean of its divisors is an integer number (3629232).

Almost surely, 2^91619682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91619682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116135424).

91619682 is an abundant number, since it is smaller than the sum of its proper divisors (140651166).

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

91619682 is a wasteful number, since it uses less digits than its factorization.

91619682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335.

The product of its digits is 46656, while the sum is 42.

The square root of 91619682 is about 9571.8170688746. The cubic root of 91619682 is about 450.8128222961.

The spelling of 91619682 in words is "ninety-one million, six hundred nineteen thousand, six hundred eighty-two".