82427783 has 4 divisors (see below), whose sum is σ = 82818648. Its totient is φ = 82036920.

The previous prime is 82427777. The next prime is 82427789. The reversal of 82427783 is 38772428.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (82427777) and next prime (82427789).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82427783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82427783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82427789) 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 in 3 ways as a sum of consecutive naturals, for example, 195116 + ... + 195537.

It is an arithmetic number, because the mean of its divisors is an integer number (20704662).

Almost surely, 2^82427783 is an apocalyptic number.

82427783 is a deficient number, since it is larger than the sum of its proper divisors (390865).

82427783 is a wasteful number, since it uses less digits than its factorization.

82427783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390864.

The product of its digits is 150528, while the sum is 41.

The square root of 82427783 is about 9078.9747769228. The cubic root of 82427783 is about 435.2023245189.

The spelling of 82427783 in words is "eighty-two million, four hundred twenty-seven thousand, seven hundred eighty-three".