8428870 has 8 divisors (see below), whose sum is σ = 15171984. Its totient is φ = 3371544.

The previous prime is 8428867. The next prime is 8428873. The reversal of 8428870 is 788248.

It is an interprime number because it is at equal distance from previous prime (8428867) and next prime (8428873).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8428873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421434 + ... + 421453.

It is an arithmetic number, because the mean of its divisors is an integer number (1896498).

Almost surely, 2^8428870 is an apocalyptic number.

8428870 is a deficient number, since it is larger than the sum of its proper divisors (6743114).

8428870 is a wasteful number, since it uses less digits than its factorization.

8428870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842894.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 8428870 is about 2903.2516253332. The cubic root of 8428870 is about 203.5118889033.

The spelling of 8428870 in words is "eight million, four hundred twenty-eight thousand, eight hundred seventy".