28046836 has 12 divisors (see below), whose sum is σ = 50223712. Its totient is φ = 13697208.

The previous prime is 28046801. The next prime is 28046849. The reversal of 28046836 is 63864082.

It is a super-2 number, since 2×28046836² = 1573250019221792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28046795 and 28046804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81360 + ... + 81703.

Almost surely, 2^28046836 is an apocalyptic number.

It is an amenable number.

28046836 is a deficient number, since it is larger than the sum of its proper divisors (22176876).

28046836 is a wasteful number, since it uses less digits than its factorization.

28046836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163110 (or 163108 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 28046836 is about 5295.9263590046. The cubic root of 28046836 is about 303.8281143970.

It can be divided in two parts, 28046 and 836, that added together give a palindrome (28882).

The spelling of 28046836 in words is "twenty-eight million, forty-six thousand, eight hundred thirty-six".