28620343 has 2 divisors, whose sum is σ = 28620344. Its totient is φ = 28620342.

The previous prime is 28620311. The next prime is 28620373. The reversal of 28620343 is 34302682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28620343 - 2⁵ = 28620311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28620373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14310171 + 14310172.

It is an arithmetic number, because the mean of its divisors is an integer number (14310172).

Almost surely, 2^28620343 is an apocalyptic number.

28620343 is a deficient number, since it is larger than the sum of its proper divisors (1).

28620343 is an equidigital number, since it uses as much as digits as its factorization.

28620343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 28620343 is about 5349.7984074169. The cubic root of 28620343 is about 305.8850686896.

The spelling of 28620343 in words is "twenty-eight million, six hundred twenty thousand, three hundred forty-three".