3948871692 has 12 divisors (see below), whose sum is σ = 9214033976. Its totient is φ = 1316290560.

The previous prime is 3948871691. The next prime is 3948871699. The reversal of 3948871692 is 2961788493.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3948871691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164536309 + ... + 164536332.

Almost surely, 2^3948871692 is an apocalyptic number.

It is an amenable number.

3948871692 is an abundant number, since it is smaller than the sum of its proper divisors (5265162284).

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

3948871692 is a wasteful number, since it uses less digits than its factorization.

3948871692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329072648 (or 329072646 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 3948871692 is about 62840.0484722919. The cubic root of 3948871692 is about 1580.6086011991.

The spelling of 3948871692 in words is "three billion, nine hundred forty-eight million, eight hundred seventy-one thousand, six hundred ninety-two".