8363969 has 2 divisors, whose sum is σ = 8363970. Its totient is φ = 8363968.

The previous prime is 8363941. The next prime is 8363981. The reversal of 8363969 is 9693638.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7182400 + 1181569 = 2680^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 8363969 - 2¹² = 8359873 is a prime.

It is a super-2 number, since 2×8363969² = 139911954865922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8363939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4181984 + 4181985.

It is an arithmetic number, because the mean of its divisors is an integer number (4181985).

Almost surely, 2^8363969 is an apocalyptic number.

It is an amenable number.

8363969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8363969 is an equidigital number, since it uses as much as digits as its factorization.

8363969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The square root of 8363969 is about 2892.0527311928. The cubic root of 8363969 is about 202.9882057745.

The spelling of 8363969 in words is "eight million, three hundred sixty-three thousand, nine hundred sixty-nine".