8398156 has 12 divisors (see below), whose sum is σ = 15827392. Its totient is φ = 3876048.

The previous prime is 8398147. The next prime is 8398177. The reversal of 8398156 is 6518938.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80700 + ... + 80803.

Almost surely, 2^8398156 is an apocalyptic number.

It is an amenable number.

8398156 is a deficient number, since it is larger than the sum of its proper divisors (7429236).

8398156 is a wasteful number, since it uses less digits than its factorization.

8398156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161520 (or 161518 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 8398156 is about 2897.9572115544. The cubic root of 8398156 is about 203.2643953944.

The spelling of 8398156 in words is "eight million, three hundred ninety-eight thousand, one hundred fifty-six".