28698727 has 2 divisors, whose sum is σ = 28698728. Its totient is φ = 28698726.

The previous prime is 28698701. The next prime is 28698749. The reversal of 28698727 is 72789682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28698727 - 2¹⁹ = 28174439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28698757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14349363 + 14349364.

It is an arithmetic number, because the mean of its divisors is an integer number (14349364).

Almost surely, 2^28698727 is an apocalyptic number.

28698727 is a deficient number, since it is larger than the sum of its proper divisors (1).

28698727 is an equidigital number, since it uses as much as digits as its factorization.

28698727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 28698727 is about 5357.1192818529. The cubic root of 28698727 is about 306.1640618510.

The spelling of 28698727 in words is "twenty-eight million, six hundred ninety-eight thousand, seven hundred twenty-seven".