28234747 has 2 divisors, whose sum is σ = 28234748. Its totient is φ = 28234746.

The previous prime is 28234729. The next prime is 28234751. The reversal of 28234747 is 74743282.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28234747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28234727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14117373 + 14117374.

It is an arithmetic number, because the mean of its divisors is an integer number (14117374).

Almost surely, 2^28234747 is an apocalyptic number.

28234747 is a deficient number, since it is larger than the sum of its proper divisors (1).

28234747 is an equidigital number, since it uses as much as digits as its factorization.

28234747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 37.

The square root of 28234747 is about 5313.6378310909. The cubic root of 28234747 is about 304.5051439710.

The spelling of 28234747 in words is "twenty-eight million, two hundred thirty-four thousand, seven hundred forty-seven".