3128984 has 16 divisors (see below), whose sum is σ = 6069600. Its totient is φ = 1510432.

The previous prime is 3128941. The next prime is 3128987. The reversal of 3128984 is 4898213.

It is a happy number.

It is a super-3 number, since 3×3128984³ = 91903337221905203712, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128987) 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, 6512 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (379350).

Almost surely, 2^3128984 is an apocalyptic number.

It is an amenable number.

3128984 is a deficient number, since it is larger than the sum of its proper divisors (2940616).

3128984 is a wasteful number, since it uses less digits than its factorization.

3128984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13522 (or 13518 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 3128984 is about 1768.8934394135. The cubic root of 3128984 is about 146.2629900557.

The spelling of 3128984 in words is "three million, one hundred twenty-eight thousand, nine hundred eighty-four".