8208406 has 4 divisors (see below), whose sum is σ = 12312612. Its totient is φ = 4104202.

The previous prime is 8208383. The next prime is 8208427. The reversal of 8208406 is 6048028.

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

It is an Ulam number.

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, 2052100 + ... + 2052103.

It is an arithmetic number, because the mean of its divisors is an integer number (3078153).

Almost surely, 2^8208406 is an apocalyptic number.

8208406 is a deficient number, since it is larger than the sum of its proper divisors (4104206).

8208406 is a wasteful number, since it uses less digits than its factorization.

8208406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104205.

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

The square root of 8208406 is about 2865.0315879585. The cubic root of 8208406 is about 201.7218502839.

The spelling of 8208406 in words is "eight million, two hundred eight thousand, four hundred six".