28794343 has 4 divisors (see below), whose sum is σ = 28828800. Its totient is φ = 28759888.

The previous prime is 28794331. The next prime is 28794347. The reversal of 28794343 is 34349782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28794343 is a prime.

It is a super-2 number, since 2×28794343² = 1658228377603298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28794296 and 28794305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28794347) 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, 15943 + ... + 17656.

It is an arithmetic number, because the mean of its divisors is an integer number (7207200).

Almost surely, 2^28794343 is an apocalyptic number.

28794343 is a deficient number, since it is larger than the sum of its proper divisors (34457).

28794343 is an equidigital number, since it uses as much as digits as its factorization.

28794343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34456.

The product of its digits is 145152, while the sum is 40.

The square root of 28794343 is about 5366.0360602590. The cubic root of 28794343 is about 306.5037021411.

The spelling of 28794343 in words is "twenty-eight million, seven hundred ninety-four thousand, three hundred forty-three".