28799708 has 12 divisors (see below), whose sum is σ = 57599472. Its totient is φ = 12342720.

The previous prime is 28799681. The next prime is 28799711. The reversal of 28799708 is 80799782.

It is a happy number.

28799708 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514253 + ... + 514308.

It is an arithmetic number, because the mean of its divisors is an integer number (4799956).

Almost surely, 2^28799708 is an apocalyptic number.

28799708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28799708 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28799708 is a wasteful number, since it uses less digits than its factorization.

28799708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028572 (or 1028570 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 28799708 is about 5366.5359404368. The cubic root of 28799708 is about 306.5227370171.

It can be divided in two parts, 28 and 799708, that multiplied together give a square (22391824 = 4732²).

The spelling of 28799708 in words is "twenty-eight million, seven hundred ninety-nine thousand, seven hundred eight".