3966736966 has 4 divisors (see below), whose sum is σ = 5950105452. Its totient is φ = 1983368482.

The previous prime is 3966736937. The next prime is 3966736979. The reversal of 3966736966 is 6696376693.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991684240 + ... + 991684243.

It is an arithmetic number, because the mean of its divisors is an integer number (1487526363).

Almost surely, 2^3966736966 is an apocalyptic number.

3966736966 is a deficient number, since it is larger than the sum of its proper divisors (1983368486).

3966736966 is a wasteful number, since it uses less digits than its factorization.

3966736966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983368485.

The product of its digits is 39680928, while the sum is 61.

The square root of 3966736966 is about 62982.0368517881. The cubic root of 3966736966 is about 1582.9886505199.

The spelling of 3966736966 in words is "three billion, nine hundred sixty-six million, seven hundred thirty-six thousand, nine hundred sixty-six".