28053747 has 12 divisors (see below), whose sum is σ = 42655080. Its totient is φ = 17718048.

The previous prime is 28053737. The next prime is 28053749. The reversal of 28053747 is 74735082.

28053747 is a `hidden beast` number, since 2 + 80 + 537 + 47 = 666.

It is not a de Polignac number, because 28053747 - 2⁴ = 28053731 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28053749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81858 + ... + 82199.

It is an arithmetic number, because the mean of its divisors is an integer number (3554590).

Almost surely, 2^28053747 is an apocalyptic number.

28053747 is a deficient number, since it is larger than the sum of its proper divisors (14601333).

28053747 is a wasteful number, since it uses less digits than its factorization.

28053747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164082 (or 164079 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 28053747 is about 5296.5788014529. The cubic root of 28053747 is about 303.8530677008.

The spelling of 28053747 in words is "twenty-eight million, fifty-three thousand, seven hundred forty-seven".