9973669 has 2 divisors, whose sum is σ = 9973670. Its totient is φ = 9973668.

The previous prime is 9973631. The next prime is 9973673. The reversal of 9973669 is 9663799.

9973669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 1592644 = 2895^2 + 1262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9973669 is a prime.

It is a super-2 number, since 2×9973669² = 198948146643122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9976669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986834 + 4986835.

It is an arithmetic number, because the mean of its divisors is an integer number (4986835).

Almost surely, 2^9973669 is an apocalyptic number.

It is an amenable number.

9973669 is a deficient number, since it is larger than the sum of its proper divisors (1).

9973669 is an equidigital number, since it uses as much as digits as its factorization.

9973669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551124, while the sum is 49.

The square root of 9973669 is about 3158.1116193067. Note that the first 3 decimals coincide. The cubic root of 9973669 is about 215.2542080588.

The spelling of 9973669 in words is "nine million, nine hundred seventy-three thousand, six hundred sixty-nine".