28484836 has 6 divisors (see below), whose sum is σ = 49848470. Its totient is φ = 14242416.

The previous prime is 28484831. The next prime is 28484837. The reversal of 28484836 is 63848482.

It can be written as a sum of positive squares in only one way, i.e., 14868736 + 13616100 = 3856^2 + 3690^2 .

It is a super-2 number, since 2×28484836² = 1622771763893792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28484792 and 28484801.

It is not an unprimeable number, because it can be changed into a prime (28484831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560601 + ... + 3560608.

Almost surely, 2^28484836 is an apocalyptic number.

It is an amenable number.

28484836 is a deficient number, since it is larger than the sum of its proper divisors (21363634).

28484836 is a wasteful number, since it uses less digits than its factorization.

28484836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121213 (or 7121211 counting only the distinct ones).

The product of its digits is 294912, while the sum is 43.

The square root of 28484836 is about 5337.1186983240. The cubic root of 28484836 is about 305.4015529742.

The spelling of 28484836 in words is "twenty-eight million, four hundred eighty-four thousand, eight hundred thirty-six".