28486736 has 20 divisors (see below), whose sum is σ = 55618464. Its totient is φ = 14133600.

The previous prime is 28486727. The next prime is 28486741. The reversal of 28486736 is 63768482.

It is a super-2 number, since 2×28486736² = 1622988255867392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4700 + ... + 8891.

Almost surely, 2^28486736 is an apocalyptic number.

It is an amenable number.

28486736 is a deficient number, since it is larger than the sum of its proper divisors (27131728).

28486736 is a wasteful number, since it uses less digits than its factorization.

28486736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13730 (or 13724 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 28486736 is about 5337.2966940203. The cubic root of 28486736 is about 305.4083431373.

The spelling of 28486736 in words is "twenty-eight million, four hundred eighty-six thousand, seven hundred thirty-six".