28302716 has 24 divisors (see below), whose sum is σ = 53484480. Its totient is φ = 13027392.

The previous prime is 28302709. The next prime is 28302731. The reversal of 28302716 is 61720382.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37010 + ... + 37766.

It is an arithmetic number, because the mean of its divisors is an integer number (2228520).

Almost surely, 2^28302716 is an apocalyptic number.

28302716 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28302716 is a deficient number, since it is larger than the sum of its proper divisors (25181764).

28302716 is a wasteful number, since it uses less digits than its factorization.

28302716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 28302716 is about 5320.0296991652. The cubic root of 28302716 is about 304.7492914221.

The spelling of 28302716 in words is "twenty-eight million, three hundred two thousand, seven hundred sixteen".