28829443 has 2 divisors, whose sum is σ = 28829444. Its totient is φ = 28829442.

The previous prime is 28829431. The next prime is 28829447. The reversal of 28829443 is 34492882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28829443 is a prime.

It is a super-2 number, since 2×28829443² = 1662273567380498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28829396 and 28829405.

It is not a weakly prime, because it can be changed into another prime (28829447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14414721 + 14414722.

It is an arithmetic number, because the mean of its divisors is an integer number (14414722).

Almost surely, 2^28829443 is an apocalyptic number.

28829443 is a deficient number, since it is larger than the sum of its proper divisors (1).

28829443 is an equidigital number, since it uses as much as digits as its factorization.

28829443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 40.

The square root of 28829443 is about 5369.3056348098. The cubic root of 28829443 is about 306.6281931623.

The spelling of 28829443 in words is "twenty-eight million, eight hundred twenty-nine thousand, four hundred forty-three".