82008406 has 4 divisors (see below), whose sum is σ = 123012612. Its totient is φ = 41004202.

The previous prime is 82008383. The next prime is 82008431. The reversal of 82008406 is 60480028.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20502100 + ... + 20502103.

It is an arithmetic number, because the mean of its divisors is an integer number (30753153).

Almost surely, 2^82008406 is an apocalyptic number.

82008406 is a deficient number, since it is larger than the sum of its proper divisors (41004206).

82008406 is a wasteful number, since it uses less digits than its factorization.

82008406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41004205.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 82008406 is about 9055.8492699470. The cubic root of 82008406 is about 434.4629934807.

The spelling of 82008406 in words is "eighty-two million, eight thousand, four hundred six".