28673707 has 2 divisors, whose sum is σ = 28673708. Its totient is φ = 28673706.

The previous prime is 28673681. The next prime is 28673759. The reversal of 28673707 is 70737682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28673707 - 2¹⁵ = 28640939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28673707.

It is not a weakly prime, because it can be changed into another prime (28673797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14336853 + 14336854.

It is an arithmetic number, because the mean of its divisors is an integer number (14336854).

Almost surely, 2^28673707 is an apocalyptic number.

28673707 is a deficient number, since it is larger than the sum of its proper divisors (1).

28673707 is an equidigital number, since it uses as much as digits as its factorization.

28673707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 28673707 is about 5354.7835623861. The cubic root of 28673707 is about 306.0750631065.

The spelling of 28673707 in words is "twenty-eight million, six hundred seventy-three thousand, seven hundred seven".