28762056 has 24 divisors (see below), whose sum is σ = 77897430. Its totient is φ = 9587328.

The previous prime is 28762051. The next prime is 28762081. The reversal of 28762056 is 65026782.

28762056 is a `hidden beast` number, since 28 + 7 + 620 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14699556 + 14062500 = 3834^2 + 3750^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28762056.

It is not an unprimeable number, because it can be changed into a prime (28762051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199665 + ... + 199808.

Almost surely, 2^28762056 is an apocalyptic number.

It is an amenable number.

28762056 is an abundant number, since it is smaller than the sum of its proper divisors (49135374).

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

28762056 is a wasteful number, since it uses less digits than its factorization.

28762056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399485 (or 399478 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 28762056 is about 5363.0267573451. The cubic root of 28762056 is about 306.3890987721.

The spelling of 28762056 in words is "twenty-eight million, seven hundred sixty-two thousand, fifty-six".