8938669 has 2 divisors, whose sum is σ = 8938670. Its totient is φ = 8938668.

The previous prime is 8938667. The next prime is 8938679. The reversal of 8938669 is 9668398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5116644 + 3822025 = 2262^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 8938669 - 2¹ = 8938667 is a prime.

It is a super-2 number, since 2×8938669² = 159799606983122, which contains 22 as substring.

Together with 8938667, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8938663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4469334 + 4469335.

It is an arithmetic number, because the mean of its divisors is an integer number (4469335).

Almost surely, 2^8938669 is an apocalyptic number.

It is an amenable number.

8938669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8938669 is an equidigital number, since it uses as much as digits as its factorization.

8938669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 8938669 is about 2989.7606927646. The cubic root of 8938669 is about 207.5348100500.

The spelling of 8938669 in words is "eight million, nine hundred thirty-eight thousand, six hundred sixty-nine".