28113343 has 2 divisors, whose sum is σ = 28113344. Its totient is φ = 28113342.

The previous prime is 28113341. The next prime is 28113361. The reversal of 28113343 is 34331182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28113343 - 2¹ = 28113341 is a prime.

Together with 28113341, it forms a pair of twin primes.

It is equal to p_1748050 and since 28113343 and 1748050 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28113341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14056671 + 14056672.

It is an arithmetic number, because the mean of its divisors is an integer number (14056672).

Almost surely, 2^28113343 is an apocalyptic number.

28113343 is a deficient number, since it is larger than the sum of its proper divisors (1).

28113343 is an equidigital number, since it uses as much as digits as its factorization.

28113343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 28113343 is about 5302.2017124964. The cubic root of 28113343 is about 304.0680790224.

The spelling of 28113343 in words is "twenty-eight million, one hundred thirteen thousand, three hundred forty-three".