3128536 has 8 divisors (see below), whose sum is σ = 5866020. Its totient is φ = 1564264.

The previous prime is 3128533. The next prime is 3128579. The reversal of 3128536 is 6358213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195526 + ... + 195541.

Almost surely, 2^3128536 is an apocalyptic number.

It is an amenable number.

3128536 is a deficient number, since it is larger than the sum of its proper divisors (2737484).

3128536 is a wasteful number, since it uses less digits than its factorization.

3128536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391073 (or 391069 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 3128536 is about 1768.7668020403. The cubic root of 3128536 is about 146.2560092011.

The spelling of 3128536 in words is "three million, one hundred twenty-eight thousand, five hundred thirty-six".