763666223 has 4 divisors (see below), whose sum is σ = 767001240. Its totient is φ = 760331208.

The previous prime is 763666207. The next prime is 763666229. The reversal of 763666223 is 322666367.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322666367 = 43 ⋅7503869.

It is a cyclic number.

It is not a de Polignac number, because 763666223 - 2⁴ = 763666207 is a prime.

It is a super-2 number, since 2×763666223² = 1166372200302171458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763666229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667165 + ... + 1667622.

It is an arithmetic number, because the mean of its divisors is an integer number (191750310).

Almost surely, 2^763666223 is an apocalyptic number.

763666223 is a deficient number, since it is larger than the sum of its proper divisors (3335017).

763666223 is a wasteful number, since it uses less digits than its factorization.

763666223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335016.

The product of its digits is 326592, while the sum is 41.

The square root of 763666223 is about 27634.5114485493. The cubic root of 763666223 is about 914.0455964593.

The spelling of 763666223 in words is "seven hundred sixty-three million, six hundred sixty-six thousand, two hundred twenty-three".