28673851 has 2 divisors, whose sum is σ = 28673852. Its totient is φ = 28673850.

The previous prime is 28673833. The next prime is 28673857. The reversal of 28673851 is 15837682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28673851 - 2¹¹ = 28671803 is a prime.

It is not a weakly prime, because it can be changed into another prime (28673857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14336925 + 14336926.

It is an arithmetic number, because the mean of its divisors is an integer number (14336926).

Almost surely, 2^28673851 is an apocalyptic number.

28673851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28673851 is an equidigital number, since it uses as much as digits as its factorization.

28673851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 28673851 is about 5354.7970082908. The cubic root of 28673851 is about 306.0755754776.

The spelling of 28673851 in words is "twenty-eight million, six hundred seventy-three thousand, eight hundred fifty-one".