82783806 has 32 divisors (see below), whose sum is σ = 195747840. Its totient is φ = 22836576.

The previous prime is 82783769. The next prime is 82783819. The reversal of 82783806 is 60838728.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32766 + ... + 35201.

It is an arithmetic number, because the mean of its divisors is an integer number (6117120).

Almost surely, 2^82783806 is an apocalyptic number.

82783806 is an abundant number, since it is smaller than the sum of its proper divisors (112964034).

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

82783806 is a wasteful number, since it uses less digits than its factorization.

82783806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68008.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 82783806 is about 9098.5606554004. The cubic root of 82783806 is about 435.8280014833.

The spelling of 82783806 in words is "eighty-two million, seven hundred eighty-three thousand, eight hundred six".