82243811 has 8 divisors (see below), whose sum is σ = 89158944. Its totient is φ = 75412800.

The previous prime is 82243801. The next prime is 82243813. The reversal of 82243811 is 11834228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82243811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82243813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18986 + ... + 22911.

It is an arithmetic number, because the mean of its divisors is an integer number (11144868).

Almost surely, 2^82243811 is an apocalyptic number.

82243811 is a deficient number, since it is larger than the sum of its proper divisors (6915133).

82243811 is a wasteful number, since it uses less digits than its factorization.

82243811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42061.

The product of its digits is 3072, while the sum is 29.

The square root of 82243811 is about 9068.8373565744. The cubic root of 82243811 is about 434.8783047961.

The spelling of 82243811 in words is "eighty-two million, two hundred forty-three thousand, eight hundred eleven".