10438689 has 4 divisors (see below), whose sum is σ = 13918256. Its totient is φ = 6959124.

The previous prime is 10438679. The next prime is 10438691. The reversal of 10438689 is 98683401.

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 10438689 - 2²¹ = 8341537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10438639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739779 + ... + 1739784.

It is an arithmetic number, because the mean of its divisors is an integer number (3479564).

Almost surely, 2^10438689 is an apocalyptic number.

It is an amenable number.

10438689 is a deficient number, since it is larger than the sum of its proper divisors (3479567).

10438689 is an equidigital number, since it uses as much as digits as its factorization.

10438689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479566.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 10438689 is about 3230.8960057544. The cubic root of 10438689 is about 218.5489140928.

The spelling of 10438689 in words is "ten million, four hundred thirty-eight thousand, six hundred eighty-nine".