8428726 has 8 divisors (see below), whose sum is σ = 12816504. Its totient is φ = 4156560.

The previous prime is 8428709. The next prime is 8428729. The reversal of 8428726 is 6278248.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8428729) 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, 28720 + ... + 29011.

It is an arithmetic number, because the mean of its divisors is an integer number (1602063).

Almost surely, 2^8428726 is an apocalyptic number.

8428726 is a deficient number, since it is larger than the sum of its proper divisors (4387778).

8428726 is a wasteful number, since it uses less digits than its factorization.

8428726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57806.

The product of its digits is 43008, while the sum is 37.

The square root of 8428726 is about 2903.2268254478. The cubic root of 8428726 is about 203.5107299548.

The spelling of 8428726 in words is "eight million, four hundred twenty-eight thousand, seven hundred twenty-six".