10863409 has 2 divisors, whose sum is σ = 10863410. Its totient is φ = 10863408.

The previous prime is 10863407. The next prime is 10863427. The reversal of 10863409 is 90436801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8832784 + 2030625 = 2972^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 10863409 - 2¹ = 10863407 is a prime.

Together with 10863407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10863407) 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, 5431704 + 5431705.

It is an arithmetic number, because the mean of its divisors is an integer number (5431705).

Almost surely, 2^10863409 is an apocalyptic number.

It is an amenable number.

10863409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10863409 is an equidigital number, since it uses as much as digits as its factorization.

10863409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 10863409 is about 3295.9685981514. The cubic root of 10863409 is about 221.4736400409.

It can be divided in two parts, 10 and 863409, that multiplied together give a triangular number (8634090 = T₄₁₅₅).

The spelling of 10863409 in words is "ten million, eight hundred sixty-three thousand, four hundred nine".