28674347 has 4 divisors (see below), whose sum is σ = 30880080. Its totient is φ = 26468616.

The previous prime is 28674313. The next prime is 28674361. The reversal of 28674347 is 74347682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74347682 = 2 ⋅37173841.

It is a cyclic number.

It is not a de Polignac number, because 28674347 - 2⁸ = 28674091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28674367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102847 + ... + 1102872.

It is an arithmetic number, because the mean of its divisors is an integer number (7720020).

Almost surely, 2^28674347 is an apocalyptic number.

28674347 is a deficient number, since it is larger than the sum of its proper divisors (2205733).

28674347 is a wasteful number, since it uses less digits than its factorization.

28674347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205732.

The product of its digits is 225792, while the sum is 41.

The square root of 28674347 is about 5354.8433217042. The cubic root of 28674347 is about 306.0773402982.

The spelling of 28674347 in words is "twenty-eight million, six hundred seventy-four thousand, three hundred forty-seven".