28343827 has 8 divisors (see below), whose sum is σ = 29417472. Its totient is φ = 27280200.

The previous prime is 28343807. The next prime is 28343831. The reversal of 28343827 is 72834382.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28343827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28343807) 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, 3528 + ... + 8314.

It is an arithmetic number, because the mean of its divisors is an integer number (3677184).

Almost surely, 2^28343827 is an apocalyptic number.

28343827 is a deficient number, since it is larger than the sum of its proper divisors (1073645).

28343827 is a wasteful number, since it uses less digits than its factorization.

28343827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009.

The product of its digits is 64512, while the sum is 37.

The square root of 28343827 is about 5323.8920913182. The cubic root of 28343827 is about 304.8967741691.

The spelling of 28343827 in words is "twenty-eight million, three hundred forty-three thousand, eight hundred twenty-seven".