10786989 has 4 divisors (see below), whose sum is σ = 14382656. Its totient is φ = 7191324.

The previous prime is 10786981. The next prime is 10787009. The reversal of 10786989 is 98968701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10786989 - 2³ = 10786981 is a prime.

It is a super-2 number, since 2×10786989² = 232718263372242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10786981) 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 in 3 ways as a sum of consecutive naturals, for example, 1797829 + ... + 1797834.

It is an arithmetic number, because the mean of its divisors is an integer number (3595664).

Almost surely, 2^10786989 is an apocalyptic number.

It is an amenable number.

10786989 is a deficient number, since it is larger than the sum of its proper divisors (3595667).

10786989 is an equidigital number, since it uses as much as digits as its factorization.

10786989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595666.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 10786989 is about 3284.3551878565. The cubic root of 10786989 is about 220.9530895567.

The spelling of 10786989 in words is "ten million, seven hundred eighty-six thousand, nine hundred eighty-nine".