663213314 has 4 divisors (see below), whose sum is σ = 994819974. Its totient is φ = 331606656.

The previous prime is 663213293. The next prime is 663213323. The reversal of 663213314 is 413312366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 413312366 = 2 ⋅206656183.

It can be written as a sum of positive squares in only one way, i.e., 576816289 + 86397025 = 24017^2 + 9295^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165803327 + ... + 165803330.

Almost surely, 2^663213314 is an apocalyptic number.

663213314 is a deficient number, since it is larger than the sum of its proper divisors (331606660).

663213314 is a wasteful number, since it uses less digits than its factorization.

663213314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331606659.

The product of its digits is 7776, while the sum is 29.

The square root of 663213314 is about 25752.9282606852. The cubic root of 663213314 is about 872.0694619988.

The spelling of 663213314 in words is "six hundred sixty-three million, two hundred thirteen thousand, three hundred fourteen".