10388869 has 2 divisors, whose sum is σ = 10388870. Its totient is φ = 10388868.

The previous prime is 10388863. The next prime is 10388891. The reversal of 10388869 is 96888301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 390625 = 3162^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 10388869 - 2⁵ = 10388837 is a prime.

It is a super-2 number, since 2×10388869² = 215857198198322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10388863) 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, 5194434 + 5194435.

It is an arithmetic number, because the mean of its divisors is an integer number (5194435).

Almost surely, 2^10388869 is an apocalyptic number.

It is an amenable number.

10388869 is a deficient number, since it is larger than the sum of its proper divisors (1).

10388869 is an equidigital number, since it uses as much as digits as its factorization.

10388869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 10388869 is about 3223.1768490109. The cubic root of 10388869 is about 218.2006751326.

The spelling of 10388869 in words is "ten million, three hundred eighty-eight thousand, eight hundred sixty-nine".