3969171386 has 16 divisors (see below), whose sum is σ = 6072966144. Its totient is φ = 1945226304.

The previous prime is 3969171361. The next prime is 3969171439. The reversal of 3969171386 is 6831719693.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73055 + ... + 115218.

It is an arithmetic number, because the mean of its divisors is an integer number (379560384).

Almost surely, 2^3969171386 is an apocalyptic number.

3969171386 is a deficient number, since it is larger than the sum of its proper divisors (2103794758).

3969171386 is a wasteful number, since it uses less digits than its factorization.

3969171386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188485.

The product of its digits is 1469664, while the sum is 53.

The square root of 3969171386 is about 63001.3601916657. The cubic root of 3969171386 is about 1583.3124154676.

The spelling of 3969171386 in words is "three billion, nine hundred sixty-nine million, one hundred seventy-one thousand, three hundred eighty-six".