3166728 has 16 divisors (see below), whose sum is σ = 7916880. Its totient is φ = 1055568.

The previous prime is 3166721. The next prime is 3166729. The reversal of 3166728 is 8276613.

It is not an unprimeable number, because it can be changed into a prime (3166721) 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, 65950 + ... + 65997.

It is an arithmetic number, because the mean of its divisors is an integer number (494805).

Almost surely, 2^3166728 is an apocalyptic number.

It is an amenable number.

3166728 is an abundant number, since it is smaller than the sum of its proper divisors (4750152).

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

3166728 is a wasteful number, since it uses less digits than its factorization.

3166728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131956 (or 131952 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 3166728 is about 1779.5302751007. The cubic root of 3166728 is about 146.8487499791.

The spelling of 3166728 in words is "three million, one hundred sixty-six thousand, seven hundred twenty-eight".