28353427 has 12 divisors (see below), whose sum is σ = 29525328. Its totient is φ = 27224000.

The previous prime is 28353397. The next prime is 28353473. The reversal of 28353427 is 72435382.

It is a de Polignac number, because none of the positive numbers 2^k-28353427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28353392 and 28353401.

It is not an unprimeable number, because it can be changed into a prime (28353497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169698 + ... + 169864.

It is an arithmetic number, because the mean of its divisors is an integer number (2460444).

Almost surely, 2^28353427 is an apocalyptic number.

28353427 is a deficient number, since it is larger than the sum of its proper divisors (1171901).

28353427 is a wasteful number, since it uses less digits than its factorization.

28353427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 309 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 28353427 is about 5324.7936110238. The cubic root of 28353427 is about 304.9311929350.

The spelling of 28353427 in words is "twenty-eight million, three hundred fifty-three thousand, four hundred twenty-seven".