13862969 has 2 divisors, whose sum is σ = 13862970. Its totient is φ = 13862968.

The previous prime is 13862917. The next prime is 13862977. The reversal of 13862969 is 96926831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8970025 + 4892944 = 2995^2 + 2212^2 .

It is a cyclic number.

It is not a de Polignac number, because 13862969 - 2⁸ = 13862713 is a prime.

It is a super-2 number, since 2×13862969² = 384363818989922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13862269) 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, 6931484 + 6931485.

It is an arithmetic number, because the mean of its divisors is an integer number (6931485).

Almost surely, 2^13862969 is an apocalyptic number.

It is an amenable number.

13862969 is a deficient number, since it is larger than the sum of its proper divisors (1).

13862969 is an equidigital number, since it uses as much as digits as its factorization.

13862969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 13862969 is about 3723.3008205086. The cubic root of 13862969 is about 240.2253034732.

The spelling of 13862969 in words is "thirteen million, eight hundred sixty-two thousand, nine hundred sixty-nine".