28126936 has 8 divisors (see below), whose sum is σ = 52738020. Its totient is φ = 14063464.

The previous prime is 28126913. The next prime is 28126949. The reversal of 28126936 is 63962182.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28126936² = 1582249057496192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28126895 and 28126904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1757926 + ... + 1757941.

Almost surely, 2^28126936 is an apocalyptic number.

It is an amenable number.

28126936 is a deficient number, since it is larger than the sum of its proper divisors (24611084).

28126936 is a wasteful number, since it uses less digits than its factorization.

28126936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515873 (or 3515869 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 28126936 is about 5303.4833835886. The cubic root of 28126936 is about 304.1170774811.

The spelling of 28126936 in words is "twenty-eight million, one hundred twenty-six thousand, nine hundred thirty-six".