28883964 has 12 divisors (see below), whose sum is σ = 67395944. Its totient is φ = 9627984.

The previous prime is 28883963. The next prime is 28884017. The reversal of 28883964 is 46938882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203487 + ... + 1203510.

Almost surely, 2^28883964 is an apocalyptic number.

It is an amenable number.

28883964 is an abundant number, since it is smaller than the sum of its proper divisors (38511980).

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

28883964 is a wasteful number, since it uses less digits than its factorization.

28883964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407004 (or 2407002 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 28883964 is about 5374.3803363737. The cubic root of 28883964 is about 306.8213654479.

The spelling of 28883964 in words is "twenty-eight million, eight hundred eighty-three thousand, nine hundred sixty-four".