8870428 has 12 divisors (see below), whose sum is σ = 17740912. Its totient is φ = 3801600.

The previous prime is 8870423. The next prime is 8870429. The reversal of 8870428 is 8240788.

8870428 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8870423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158373 + ... + 158428.

Almost surely, 2^8870428 is an apocalyptic number.

It is an amenable number.

8870428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8870428 is a wasteful number, since it uses less digits than its factorization.

8870428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316812 (or 316810 counting only the distinct ones).

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

The square root of 8870428 is about 2978.3263756681. The cubic root of 8870428 is about 207.0053286531.

The spelling of 8870428 in words is "eight million, eight hundred seventy thousand, four hundred twenty-eight".