8442669 has 16 divisors (see below), whose sum is σ = 12017600. Its totient is φ = 5256576.

The previous prime is 8442667. The next prime is 8442671. The reversal of 8442669 is 9662448.

It is an interprime number because it is at equal distance from previous prime (8442667) and next prime (8442671).

It is not a de Polignac number, because 8442669 - 2¹ = 8442667 is a prime.

It is a super-2 number, since 2×8442669² = 142557319687122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3147 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (751100).

Almost surely, 2^8442669 is an apocalyptic number.

It is an amenable number.

8442669 is a deficient number, since it is larger than the sum of its proper divisors (3574931).

8442669 is a wasteful number, since it uses less digits than its factorization.

8442669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its digits is 82944, while the sum is 39.

The square root of 8442669 is about 2905.6271268007. The cubic root of 8442669 is about 203.6228855718.

The spelling of 8442669 in words is "eight million, four hundred forty-two thousand, six hundred sixty-nine".