28738343 has 2 divisors, whose sum is σ = 28738344. Its totient is φ = 28738342.

The previous prime is 28738321. The next prime is 28738351. The reversal of 28738343 is 34383782.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28738343 is a prime.

It is a super-3 number, since 3×28738343³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28738297 and 28738306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28738363) 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 as a sum of consecutive naturals, namely, 14369171 + 14369172.

It is an arithmetic number, because the mean of its divisors is an integer number (14369172).

Almost surely, 2^28738343 is an apocalyptic number.

28738343 is a deficient number, since it is larger than the sum of its proper divisors (1).

28738343 is an equidigital number, since it uses as much as digits as its factorization.

28738343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 28738343 is about 5360.8155163184. The cubic root of 28738343 is about 306.3048743541.

The spelling of 28738343 in words is "twenty-eight million, seven hundred thirty-eight thousand, three hundred forty-three".