3971764326 has 16 divisors (see below), whose sum is σ = 7945245504. Its totient is φ = 1323635304.

The previous prime is 3971764309. The next prime is 3971764327. The reversal of 3971764326 is 6234671793.

3971764326 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 super-2 number, since 2×3971764326² = 31549823722572468552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971764327) 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, 40420 + ... + 97863.

It is an arithmetic number, because the mean of its divisors is an integer number (496577844).

Almost surely, 2^3971764326 is an apocalyptic number.

3971764326 is an abundant number, since it is smaller than the sum of its proper divisors (3973481178).

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

3971764326 is a wasteful number, since it uses less digits than its factorization.

3971764326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143075.

The product of its digits is 1143072, while the sum is 48.

The square root of 3971764326 is about 63021.9352765369. The cubic root of 3971764326 is about 1583.6571171726.

The spelling of 3971764326 in words is "three billion, nine hundred seventy-one million, seven hundred sixty-four thousand, three hundred twenty-six".