8706428 has 12 divisors (see below), whose sum is σ = 15260952. Its totient is φ = 4346160.

The previous prime is 8706419. The next prime is 8706457. The reversal of 8706428 is 8246078.

8706428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (1271746).

Almost surely, 2^8706428 is an apocalyptic number.

It is an amenable number.

8706428 is a deficient number, since it is larger than the sum of its proper divisors (6554524).

8706428 is a wasteful number, since it uses less digits than its factorization.

8706428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 3530 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 8706428 is about 2950.6656876034. The cubic root of 8706428 is about 205.7216525323.

The spelling of 8706428 in words is "eight million, seven hundred six thousand, four hundred twenty-eight".