3947771004 has 24 divisors (see below), whose sum is σ = 9425687040. Its totient is φ = 1285320624.

The previous prime is 3947770993. The next prime is 3947771041. The reversal of 3947771004 is 4001777493.

It is a congruent 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, 3824844 + ... + 3825875.

It is an arithmetic number, because the mean of its divisors is an integer number (392736960).

Almost surely, 2^3947771004 is an apocalyptic number.

It is an amenable number.

3947771004 is an abundant number, since it is smaller than the sum of its proper divisors (5477916036).

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

3947771004 is a wasteful number, since it uses less digits than its factorization.

3947771004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650769 (or 7650767 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 3947771004 is about 62831.2900074477. The cubic root of 3947771004 is about 1580.4617306730.

The spelling of 3947771004 in words is "three billion, nine hundred forty-seven million, seven hundred seventy-one thousand, four".