28747043 has 8 divisors (see below), whose sum is σ = 31466736. Its totient is φ = 26100000.

The previous prime is 28747031. The next prime is 28747063. The reversal of 28747043 is 34074782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28747043 - 2¹⁴ = 28730659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28746994 and 28747012.

It is not an unprimeable number, because it can be changed into a prime (28747003) 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, 17333 + ... + 18918.

It is an arithmetic number, because the mean of its divisors is an integer number (3933342).

Almost surely, 2^28747043 is an apocalyptic number.

28747043 is a deficient number, since it is larger than the sum of its proper divisors (2719693).

28747043 is a wasteful number, since it uses less digits than its factorization.

28747043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36325.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 28747043 is about 5361.6268986195. The cubic root of 28747043 is about 306.3357806076.

The spelling of 28747043 in words is "twenty-eight million, seven hundred forty-seven thousand, forty-three".