8398154 has 4 divisors (see below), whose sum is σ = 12597234. Its totient is φ = 4199076.

The previous prime is 8398147. The next prime is 8398177. The reversal of 8398154 is 4518938.

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

It can be written as a sum of positive squares in only one way, i.e., 4305625 + 4092529 = 2075^2 + 2023^2 .

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 as a sum of consecutive naturals, namely, 2099537 + ... + 2099540.

Almost surely, 2^8398154 is an apocalyptic number.

8398154 is a deficient number, since it is larger than the sum of its proper divisors (4199080).

8398154 is a wasteful number, since it uses less digits than its factorization.

8398154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199079.

The product of its digits is 34560, while the sum is 38.

The square root of 8398154 is about 2897.9568664837. The cubic root of 8398154 is about 203.2643792587.

The spelling of 8398154 in words is "eight million, three hundred ninety-eight thousand, one hundred fifty-four".