8427669 has 4 divisors (see below), whose sum is σ = 11236896. Its totient is φ = 5618444.

The previous prime is 8427667. The next prime is 8427701. The reversal of 8427669 is 9667248.

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 8427669 - 2¹ = 8427667 is a prime.

It is a super-2 number, since 2×8427669² = 142051209547122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8427669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8427667) 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, 1404609 + ... + 1404614.

It is an arithmetic number, because the mean of its divisors is an integer number (2809224).

Almost surely, 2^8427669 is an apocalyptic number.

It is an amenable number.

8427669 is a deficient number, since it is larger than the sum of its proper divisors (2809227).

8427669 is a wasteful number, since it uses less digits than its factorization.

8427669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809226.

The product of its digits is 145152, while the sum is 42.

The square root of 8427669 is about 2903.0447809154. The cubic root of 8427669 is about 203.5022225467.

The spelling of 8427669 in words is "eight million, four hundred twenty-seven thousand, six hundred sixty-nine".