3971761069 has 8 divisors (see below), whose sum is σ = 4030421472. Its totient is φ = 3913358160.

The previous prime is 3971761021. The next prime is 3971761093. The reversal of 3971761069 is 9601671793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3971761069 - 2⁷ = 3971760941 is a prime.

It is a super-2 number, since 2×3971761069² = 31549771978448045522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971761009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33187 + ... + 95104.

It is an arithmetic number, because the mean of its divisors is an integer number (503802684).

Almost surely, 2^3971761069 is an apocalyptic number.

It is an amenable number.

3971761069 is a deficient number, since it is larger than the sum of its proper divisors (58660403).

3971761069 is a wasteful number, since it uses less digits than its factorization.

3971761069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128747.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 3971761069 is about 63021.9094363222. The cubic root of 3971761069 is about 1583.6566842859.

The spelling of 3971761069 in words is "three billion, nine hundred seventy-one million, seven hundred sixty-one thousand, sixty-nine".