3970862866 has 32 divisors (see below), whose sum is σ = 6218183808. Its totient is φ = 1900039680.

The previous prime is 3970862851. The next prime is 3970862891. The reversal of 3970862866 is 6682680793.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3535381 + ... + 3536503.

It is an arithmetic number, because the mean of its divisors is an integer number (194318244).

Almost surely, 2^3970862866 is an apocalyptic number.

3970862866 is a deficient number, since it is larger than the sum of its proper divisors (2247320942).

3970862866 is a wasteful number, since it uses less digits than its factorization.

3970862866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The square root of 3970862866 is about 63014.7829163919. The cubic root of 3970862866 is about 1583.5372953968.

The spelling of 3970862866 in words is "three billion, nine hundred seventy million, eight hundred sixty-two thousand, eight hundred sixty-six".