363994669 has 2 divisors, whose sum is σ = 363994670. Its totient is φ = 363994668.

The previous prime is 363994663. The next prime is 363994721. The reversal of 363994669 is 966499363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360620100 + 3374569 = 18990^2 + 1837^2 .

It is an emirp because it is prime and its reverse (966499363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 363994669 - 2²⁷ = 229776941 is a prime.

It is a super-2 number, since 2×363994669² = 264984238120839122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (363994663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181997334 + 181997335.

It is an arithmetic number, because the mean of its divisors is an integer number (181997335).

Almost surely, 2^363994669 is an apocalyptic number.

It is an amenable number.

363994669 is a deficient number, since it is larger than the sum of its proper divisors (1).

363994669 is an equidigital number, since it uses as much as digits as its factorization.

363994669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5668704, while the sum is 55.

The square root of 363994669 is about 19078.6443176658. The cubic root of 363994669 is about 714.0002125032. Note that the first 3 decimals are identical.

The spelling of 363994669 in words is "three hundred sixty-three million, nine hundred ninety-four thousand, six hundred sixty-nine".