28553936 has 40 divisors (see below), whose sum is σ = 57392160. Its totient is φ = 13751424.

The previous prime is 28553933. The next prime is 28553963. The reversal of 28553936 is 63935582.

It is a super-2 number, since 2×28553936² = 1630654522184192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28553893 and 28553902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28553933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82115 + ... + 82461.

It is an arithmetic number, because the mean of its divisors is an integer number (1434804).

Almost surely, 2^28553936 is an apocalyptic number.

It is an amenable number.

28553936 is an abundant number, since it is smaller than the sum of its proper divisors (28838224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28553936 is a wasteful number, since it uses less digits than its factorization.

28553936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 525 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 28553936 is about 5343.5883074953. The cubic root of 28553936 is about 305.6483065547.

The spelling of 28553936 in words is "twenty-eight million, five hundred fifty-three thousand, nine hundred thirty-six".