3919227866 has 4 divisors (see below), whose sum is σ = 5878841802. Its totient is φ = 1959613932.

The previous prime is 3919227863. The next prime is 3919227943. The reversal of 3919227866 is 6687229193.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2458077241 + 1461150625 = 49579^2 + 38225^2 .

It is not an unprimeable number, because it can be changed into a prime (3919227863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 979806965 + ... + 979806968.

Almost surely, 2^3919227866 is an apocalyptic number.

3919227866 is a deficient number, since it is larger than the sum of its proper divisors (1959613936).

3919227866 is a wasteful number, since it uses less digits than its factorization.

3919227866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959613935.

The product of its digits is 1959552, while the sum is 53.

The square root of 3919227866 is about 62603.7368373486. The cubic root of 3919227866 is about 1576.6435003134.

The spelling of 3919227866 in words is "three billion, nine hundred nineteen million, two hundred twenty-seven thousand, eight hundred sixty-six".