3947837052 has 24 divisors (see below), whose sum is σ = 9425844736. Its totient is φ = 1285342128.

The previous prime is 3947837039. The next prime is 3947837071. The reversal of 3947837052 is 2507387493.

It is a junction number, because it is equal to n+sod(n) for n = 3947836992 and 3947837010.

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, 3824908 + ... + 3825939.

Almost surely, 2^3947837052 is an apocalyptic number.

It is an amenable number.

3947837052 is an abundant number, since it is smaller than the sum of its proper divisors (5478007684).

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

3947837052 is a wasteful number, since it uses less digits than its factorization.

3947837052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650897 (or 7650895 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The square root of 3947837052 is about 62831.8156032436. The cubic root of 3947837052 is about 1580.4705445711.

The spelling of 3947837052 in words is "three billion, nine hundred forty-seven million, eight hundred thirty-seven thousand, fifty-two".