3971969950 has 48 divisors (see below), whose sum is σ = 8374932720. Its totient is φ = 1389381120.

The previous prime is 3971969887. The next prime is 3971969959. The reversal of 3971969950 is 599691793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971969959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148459 + ... + 173158.

It is an arithmetic number, because the mean of its divisors is an integer number (174477765).

Almost surely, 2^3971969950 is an apocalyptic number.

3971969950 is an abundant number, since it is smaller than the sum of its proper divisors (4402962770).

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

3971969950 is a wasteful number, since it uses less digits than its factorization.

3971969950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321661 (or 321656 counting only the distinct ones).

The product of its (nonzero) digits is 4133430, while the sum is 58.

The square root of 3971969950 is about 63023.5666239225. The cubic root of 3971969950 is about 1583.6844461097.

The spelling of 3971969950 in words is "three billion, nine hundred seventy-one million, nine hundred sixty-nine thousand, nine hundred fifty".