195673669 has 2 divisors, whose sum is σ = 195673670. Its totient is φ = 195673668.

The previous prime is 195673661. The next prime is 195673679. The reversal of 195673669 is 966376591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178756900 + 16916769 = 13370^2 + 4113^2 .

It is a cyclic number.

It is not a de Polignac number, because 195673669 - 2³ = 195673661 is a prime.

It is a super-2 number, since 2×195673669² = 76576369479843122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195673661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97836834 + 97836835.

It is an arithmetic number, because the mean of its divisors is an integer number (97836835).

Almost surely, 2^195673669 is an apocalyptic number.

It is an amenable number.

195673669 is a deficient number, since it is larger than the sum of its proper divisors (1).

195673669 is an equidigital number, since it uses as much as digits as its factorization.

195673669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1837080, while the sum is 52.

The square root of 195673669 is about 13988.3404662597. The cubic root of 195673669 is about 580.5560155582.

It can be divided in two parts, 1956 and 73669, that added together give a square (75625 = 275²).

The spelling of 195673669 in words is "one hundred ninety-five million, six hundred seventy-three thousand, six hundred sixty-nine".