91682644 has 6 divisors (see below), whose sum is σ = 160444634. Its totient is φ = 45841320.

The previous prime is 91682641. The next prime is 91682651. The reversal of 91682644 is 44628619.

It can be written as a sum of positive squares in only one way, i.e., 83503044 + 8179600 = 9138^2 + 2860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91682597 and 91682606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91682641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11460327 + ... + 11460334.

Almost surely, 2^91682644 is an apocalyptic number.

It is an amenable number.

91682644 is a deficient number, since it is larger than the sum of its proper divisors (68761990).

91682644 is a wasteful number, since it uses less digits than its factorization.

91682644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22920665 (or 22920663 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 91682644 is about 9575.1054302290. The cubic root of 91682644 is about 450.9160664056.

The spelling of 91682644 in words is "ninety-one million, six hundred eighty-two thousand, six hundred forty-four".