28831708 has 12 divisors (see below), whose sum is σ = 51209032. Its totient is φ = 14200560.

The previous prime is 28831703. The next prime is 28831723. The reversal of 28831708 is 80713882.

It is a hoax number, since the sum of its digits (37) 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 (28831703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53523 + ... + 54058.

Almost surely, 2^28831708 is an apocalyptic number.

It is an amenable number.

28831708 is a deficient number, since it is larger than the sum of its proper divisors (22377324).

28831708 is a wasteful number, since it uses less digits than its factorization.

28831708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107652 (or 107650 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 28831708 is about 5369.5165517950. The cubic root of 28831708 is about 306.6362230858.

The spelling of 28831708 in words is "twenty-eight million, eight hundred thirty-one thousand, seven hundred eight".