5669969 has 2 divisors, whose sum is σ = 5669970. Its totient is φ = 5669968.

The previous prime is 5669953. The next prime is 5669971. The reversal of 5669969 is 9699665.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2930944 + 2739025 = 1712^2 + 1655^2 .

It is a cyclic number.

It is not a de Polignac number, because 5669969 - 2⁴ = 5669953 is a prime.

It is a super-2 number, since 2×5669969² = 64297096921922, which contains 22 as substring.

Together with 5669971, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5669929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2834984 + 2834985.

It is an arithmetic number, because the mean of its divisors is an integer number (2834985).

Almost surely, 2^5669969 is an apocalyptic number.

It is an amenable number.

5669969 is a deficient number, since it is larger than the sum of its proper divisors (1).

5669969 is an equidigital number, since it uses as much as digits as its factorization.

5669969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 50.

The square root of 5669969 is about 2381.1696705611. The cubic root of 5669969 is about 178.3173336060.

The spelling of 5669969 in words is "five million, six hundred sixty-nine thousand, nine hundred sixty-nine".