3136728 has 32 divisors (see below), whose sum is σ = 8962560. Its totient is φ = 896160.

The previous prime is 3136667. The next prime is 3136759. The reversal of 3136728 is 8276313.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3136695 and 3136704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9168 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (280080).

Almost surely, 2^3136728 is an apocalyptic number.

It is an amenable number.

3136728 is an abundant number, since it is smaller than the sum of its proper divisors (5825832).

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

3136728 is a wasteful number, since it uses less digits than its factorization.

3136728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18687 (or 18683 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 3136728 is about 1771.0810258145. The cubic root of 3136728 is about 146.3835539470.

The spelling of 3136728 in words is "three million, one hundred thirty-six thousand, seven hundred twenty-eight".