3947752 has 16 divisors (see below), whose sum is σ = 7602660. Its totient is φ = 1920384.

The previous prime is 3947747. The next prime is 3947753. The reversal of 3947752 is 2577493.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 51076 = 1974^2 + 226^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3947753) 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, 6373 + ... + 6964.

Almost surely, 2^3947752 is an apocalyptic number.

It is an amenable number.

3947752 is a deficient number, since it is larger than the sum of its proper divisors (3654908).

3947752 is a wasteful number, since it uses less digits than its factorization.

3947752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380 (or 13376 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 3947752 is about 1986.8950651708. The cubic root of 3947752 is about 158.0459194631.

The spelling of 3947752 in words is "three million, nine hundred forty-seven thousand, seven hundred fifty-two".