28653836 has 12 divisors (see below), whose sum is σ = 51499728. Its totient is φ = 13939632.

The previous prime is 28653829. The next prime is 28653839. The reversal of 28653836 is 63835682.

It is a junction number, because it is equal to n+sod(n) for n = 28653793 and 28653802.

It is not an unprimeable number, because it can be changed into a prime (28653839) 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, 96656 + ... + 96951.

It is an arithmetic number, because the mean of its divisors is an integer number (4291644).

Almost surely, 2^28653836 is an apocalyptic number.

It is an amenable number.

28653836 is a deficient number, since it is larger than the sum of its proper divisors (22845892).

28653836 is a wasteful number, since it uses less digits than its factorization.

28653836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193648 (or 193646 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28653836 is about 5352.9277970098. The cubic root of 28653836 is about 306.0043429973.

The spelling of 28653836 in words is "twenty-eight million, six hundred fifty-three thousand, eight hundred thirty-six".