82001788 has 12 divisors (see below), whose sum is σ = 156548952. Its totient is φ = 37273520.

The previous prime is 82001779. The next prime is 82001791. The reversal of 82001788 is 88710028.

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 3 ways as a sum of consecutive naturals, for example, 931795 + ... + 931882.

It is an arithmetic number, because the mean of its divisors is an integer number (13045746).

Almost surely, 2^82001788 is an apocalyptic number.

It is an amenable number.

82001788 is a deficient number, since it is larger than the sum of its proper divisors (74547164).

82001788 is a wasteful number, since it uses less digits than its factorization.

82001788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863692 (or 1863690 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 82001788 is about 9055.4838633836. The cubic root of 82001788 is about 434.4513062502.

The spelling of 82001788 in words is "eighty-two million, one thousand, seven hundred eighty-eight".