82789406 has 16 divisors (see below), whose sum is σ = 146503680. Its totient is φ = 34336440.

The previous prime is 82789391. The next prime is 82789409. The reversal of 82789406 is 60498728.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82789409) 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, 94946 + ... + 95813.

It is an arithmetic number, because the mean of its divisors is an integer number (9156480).

Almost surely, 2^82789406 is an apocalyptic number.

82789406 is a deficient number, since it is larger than the sum of its proper divisors (63714274).

82789406 is a wasteful number, since it uses less digits than its factorization.

82789406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190799.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 82789406 is about 9098.8683911792. The cubic root of 82789406 is about 435.8378286137.

The spelling of 82789406 in words is "eighty-two million, seven hundred eighty-nine thousand, four hundred six".