28317379 has 2 divisors, whose sum is σ = 28317380. Its totient is φ = 28317378.

The previous prime is 28317343. The next prime is 28317383. The reversal of 28317379 is 97371382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28317379 - 2⁷ = 28317251 is a prime.

It is equal to p_1759990 and since 28317379 and 1759990 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28311379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14158689 + 14158690.

It is an arithmetic number, because the mean of its divisors is an integer number (14158690).

Almost surely, 2^28317379 is an apocalyptic number.

28317379 is a deficient number, since it is larger than the sum of its proper divisors (1).

28317379 is an equidigital number, since it uses as much as digits as its factorization.

28317379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 28317379 is about 5321.4076145321. The cubic root of 28317379 is about 304.8019102520.

The spelling of 28317379 in words is "twenty-eight million, three hundred seventeen thousand, three hundred seventy-nine".