8147428 has 48 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 3583008.

The previous prime is 8147417. The next prime is 8147443. The reversal of 8147428 is 8247418.

It is a junction number, because it is equal to n+sod(n) for n = 8147393 and 8147402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103093 + ... + 103171.

It is an arithmetic number, because the mean of its divisors is an integer number (336000).

Almost surely, 2^8147428 is an apocalyptic number.

It is an amenable number.

8147428 is a deficient number, since it is larger than the sum of its proper divisors (7980572).

8147428 is a wasteful number, since it uses less digits than its factorization.

8147428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 182 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 8147428 is about 2854.3699830260. The cubic root of 8147428 is about 201.2210961152.

The spelling of 8147428 in words is "eight million, one hundred forty-seven thousand, four hundred twenty-eight".