8438669 has 4 divisors (see below), whose sum is σ = 8470080. Its totient is φ = 8407260.

The previous prime is 8438663. The next prime is 8438699. The reversal of 8438669 is 9668348.

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 a cyclic number.

It is not a de Polignac number, because 8438669 - 2⁴ = 8438653 is a prime.

It is a super-2 number, since 2×8438669² = 142422268983122, 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 (8438663) 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, 15299 + ... + 15840.

It is an arithmetic number, because the mean of its divisors is an integer number (2117520).

Almost surely, 2^8438669 is an apocalyptic number.

It is an amenable number.

8438669 is a deficient number, since it is larger than the sum of its proper divisors (31411).

8438669 is a wasteful number, since it uses less digits than its factorization.

8438669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31410.

The product of its digits is 248832, while the sum is 44.

The square root of 8438669 is about 2904.9387256877. The cubic root of 8438669 is about 203.5907227488.

The spelling of 8438669 in words is "eight million, four hundred thirty-eight thousand, six hundred sixty-nine".