8728838 has 8 divisors (see below), whose sum is σ = 13220688. Its totient is φ = 4321944.

The previous prime is 8728823. The next prime is 8728849. The reversal of 8728838 is 8388278.

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

It is a super-2 number, since 2×8728838² = 152385225660488, which contains 22 as substring.

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, 20981 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (1652586).

Almost surely, 2^8728838 is an apocalyptic number.

8728838 is a deficient number, since it is larger than the sum of its proper divisors (4491850).

8728838 is a wasteful number, since it uses less digits than its factorization.

8728838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42478.

The product of its digits is 172032, while the sum is 44.

The square root of 8728838 is about 2954.4606952877. The cubic root of 8728838 is about 205.8980077636.

The spelling of 8728838 in words is "eight million, seven hundred twenty-eight thousand, eight hundred thirty-eight".