28011343 has 2 divisors, whose sum is σ = 28011344. Its totient is φ = 28011342.

The previous prime is 28011329. The next prime is 28011353. The reversal of 28011343 is 34311082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28011343 - 2⁵ = 28011311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28011353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14005671 + 14005672.

It is an arithmetic number, because the mean of its divisors is an integer number (14005672).

Almost surely, 2^28011343 is an apocalyptic number.

28011343 is a deficient number, since it is larger than the sum of its proper divisors (1).

28011343 is an equidigital number, since it uses as much as digits as its factorization.

28011343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28011343 is about 5292.5743263557. The cubic root of 28011343 is about 303.6998964478.

The spelling of 28011343 in words is "twenty-eight million, eleven thousand, three hundred forty-three".