3162728 has 16 divisors (see below), whose sum is σ = 6028260. Its totient is φ = 1555200.

The previous prime is 3162727. The next prime is 3162739. The reversal of 3162728 is 8272613.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3161284 + 1444 = 1778^2 + 38^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3162728.

It is not an unprimeable number, because it can be changed into a prime (3162727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2753 + ... + 3728.

Almost surely, 2^3162728 is an apocalyptic number.

It is an amenable number.

3162728 is a deficient number, since it is larger than the sum of its proper divisors (2865532).

3162728 is a wasteful number, since it uses less digits than its factorization.

3162728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548 (or 6544 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 3162728 is about 1778.4060278800. The cubic root of 3162728 is about 146.7868940726.

The spelling of 3162728 in words is "three million, one hundred sixty-two thousand, seven hundred twenty-eight".