28412143 has 2 divisors, whose sum is σ = 28412144. Its totient is φ = 28412142.

The previous prime is 28412129. The next prime is 28412159. The reversal of 28412143 is 34121482.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28412143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28412123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14206071 + 14206072.

It is an arithmetic number, because the mean of its divisors is an integer number (14206072).

Almost surely, 2^28412143 is an apocalyptic number.

28412143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28412143 is an equidigital number, since it uses as much as digits as its factorization.

28412143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 25.

The square root of 28412143 is about 5330.3042127068. The cubic root of 28412143 is about 305.1415378196.

The spelling of 28412143 in words is "twenty-eight million, four hundred twelve thousand, one hundred forty-three".