8618669 has 4 divisors (see below), whose sum is σ = 8851644. Its totient is φ = 8385696.

The previous prime is 8618639. The next prime is 8618681. The reversal of 8618669 is 9668168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5244100 + 3374569 = 2290^2 + 1837^2 .

It is a cyclic number.

It is not a de Polignac number, because 8618669 - 2⁸ = 8618413 is a prime.

It is a super-2 number, since 2×8618669² = 148562910663122, 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 (8618639) 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, 116432 + ... + 116505.

It is an arithmetic number, because the mean of its divisors is an integer number (2212911).

Almost surely, 2^8618669 is an apocalyptic number.

It is an amenable number.

8618669 is a deficient number, since it is larger than the sum of its proper divisors (232975).

8618669 is a wasteful number, since it uses less digits than its factorization.

8618669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232974.

The product of its digits is 124416, while the sum is 44.

The square root of 8618669 is about 2935.7569722305. The cubic root of 8618669 is about 205.0281063981.

The spelling of 8618669 in words is "eight million, six hundred eighteen thousand, six hundred sixty-nine".