28343135 has 4 divisors (see below), whose sum is σ = 34011768. Its totient is φ = 22674504.

The previous prime is 28343113. The next prime is 28343137. The reversal of 28343135 is 53134382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28343135 - 2⁶ = 28343071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28343098 and 28343107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28343137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2834309 + ... + 2834318.

It is an arithmetic number, because the mean of its divisors is an integer number (8502942).

Almost surely, 2^28343135 is an apocalyptic number.

28343135 is a deficient number, since it is larger than the sum of its proper divisors (5668633).

28343135 is an equidigital number, since it uses as much as digits as its factorization.

28343135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668632.

The product of its digits is 8640, while the sum is 29.

The square root of 28343135 is about 5323.8271008740. The cubic root of 28343135 is about 304.8942928495.

The spelling of 28343135 in words is "twenty-eight million, three hundred forty-three thousand, one hundred thirty-five".