3973947000 has 64 divisors (see below), whose sum is σ = 12398724000. Its totient is φ = 1059718400.

The previous prime is 3973946993. The next prime is 3973947011. The reversal of 3973947000 is 7493793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659325 + ... + 665324.

Almost surely, 2^3973947000 is an apocalyptic number.

3973947000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3973947000 is an abundant number, since it is smaller than the sum of its proper divisors (8424777000).

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

3973947000 is a wasteful number, since it uses less digits than its factorization.

3973947000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324673 (or 1324659 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 3973947000 is about 63039.2496782758. The cubic root of 3973947000 is about 1583.9471624299.

The spelling of 3973947000 in words is "three billion, nine hundred seventy-three million, nine hundred forty-seven thousand".