28713953 has 2 divisors, whose sum is σ = 28713954. Its totient is φ = 28713952.

The previous prime is 28713947. The next prime is 28713983. The reversal of 28713953 is 35931782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24482704 + 4231249 = 4948^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 28713953 - 2⁶ = 28713889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28713983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14356976 + 14356977.

It is an arithmetic number, because the mean of its divisors is an integer number (14356977).

Almost surely, 2^28713953 is an apocalyptic number.

It is an amenable number.

28713953 is a deficient number, since it is larger than the sum of its proper divisors (1).

28713953 is an equidigital number, since it uses as much as digits as its factorization.

28713953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 28713953 is about 5358.5401930003. The cubic root of 28713953 is about 306.2181970029.

The spelling of 28713953 in words is "twenty-eight million, seven hundred thirteen thousand, nine hundred fifty-three".