3966845670 has 64 divisors (see below), whose sum is σ = 10585635840. Its totient is φ = 1057087584.

The previous prime is 3966845633. The next prime is 3966845683. The reversal of 3966845670 is 765486693.

3966845670 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460947 + ... + 469473.

It is an arithmetic number, because the mean of its divisors is an integer number (165400560).

Almost surely, 2^3966845670 is an apocalyptic number.

3966845670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3966845670 is an abundant number, since it is smaller than the sum of its proper divisors (6618790170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3966845670 is a wasteful number, since it uses less digits than its factorization.

3966845670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266 (or 10260 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 3966845670 is about 62982.8998220946. The cubic root of 3966845670 is about 1583.0031104003.

The spelling of 3966845670 in words is "three billion, nine hundred sixty-six million, eight hundred forty-five thousand, six hundred seventy".