28850443 has 2 divisors, whose sum is σ = 28850444. Its totient is φ = 28850442.

The previous prime is 28850399. The next prime is 28850449. The reversal of 28850443 is 34405882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28850443 is a prime.

It is a super-2 number, since 2×28850443² = 1664696122592498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28850399 and 28850408.

It is not a weakly prime, because it can be changed into another prime (28850449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425221 + 14425222.

It is an arithmetic number, because the mean of its divisors is an integer number (14425222).

Almost surely, 2^28850443 is an apocalyptic number.

28850443 is a deficient number, since it is larger than the sum of its proper divisors (1).

28850443 is an equidigital number, since it uses as much as digits as its factorization.

28850443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 28850443 is about 5371.2608389465. The cubic root of 28850443 is about 306.7026266643.

The spelling of 28850443 in words is "twenty-eight million, eight hundred fifty thousand, four hundred forty-three".