28797416 has 16 divisors (see below), whose sum is σ = 55312740. Its totient is φ = 14047360.

The previous prime is 28797413. The next prime is 28797421. The reversal of 28797416 is 61479782.

It can be written as a sum of positive squares in 2 ways, for example, as 27520516 + 1276900 = 5246^2 + 1130^2 .

It is not an unprimeable number, because it can be changed into a prime (28797413) 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, 43571 + ... + 44226.

Almost surely, 2^28797416 is an apocalyptic number.

It is an amenable number.

28797416 is a deficient number, since it is larger than the sum of its proper divisors (26515324).

28797416 is a wasteful number, since it uses less digits than its factorization.

28797416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87844 (or 87840 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 28797416 is about 5366.3223906135. The cubic root of 28797416 is about 306.5146053519.

The spelling of 28797416 in words is "twenty-eight million, seven hundred ninety-seven thousand, four hundred sixteen".