8890669 has 2 divisors, whose sum is σ = 8890670. Its totient is φ = 8890668.

The previous prime is 8890667. The next prime is 8890709. The reversal of 8890669 is 9660988.

It is a happy number.

8890669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6441444 + 2449225 = 2538^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 8890669 - 2¹ = 8890667 is a prime.

It is a super-2 number, since 2×8890669² = 158087990535122, which contains 22 as substring.

Together with 8890667, it forms a pair of twin primes.

It is an Ulam number.

8890669 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8890667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4445334 + 4445335.

It is an arithmetic number, because the mean of its divisors is an integer number (4445335).

Almost surely, 2^8890669 is an apocalyptic number.

It is an amenable number.

8890669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8890669 is an equidigital number, since it uses as much as digits as its factorization.

8890669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 8890669 is about 2981.7224887638. The cubic root of 8890669 is about 207.1626608551.

It can be divided in two parts, 8890 and 669, that added together give a palindrome (9559).

The spelling of 8890669 in words is "eight million, eight hundred ninety thousand, six hundred sixty-nine".