3971750 has 16 divisors (see below), whose sum is σ = 7435584. Its totient is φ = 1588600.

The previous prime is 3971749. The next prime is 3971791. The reversal of 3971750 is 571793.

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, 7694 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (464724).

Almost surely, 2^3971750 is an apocalyptic number.

3971750 is a deficient number, since it is larger than the sum of its proper divisors (3463834).

3971750 is a wasteful number, since it uses less digits than its factorization.

3971750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15904 (or 15894 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 3971750 is about 1992.9249860444. The cubic root of 3971750 is about 158.3655213107.

The spelling of 3971750 in words is "three million, nine hundred seventy-one thousand, seven hundred fifty".