3947234 has 16 divisors (see below), whose sum is σ = 6233976. Its totient is φ = 1872000.

The previous prime is 3947233. The next prime is 3947297. The reversal of 3947234 is 4327493.

It can be written as a sum of positive squares in 4 ways, for example, as 1836025 + 2111209 = 1355^2 + 1453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3947234.

It is not an unprimeable number, because it can be changed into a prime (3947233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2384 + ... + 3684.

Almost surely, 2^3947234 is an apocalyptic number.

3947234 is a deficient number, since it is larger than the sum of its proper divisors (2286742).

3947234 is a wasteful number, since it uses less digits than its factorization.

3947234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381.

The product of its digits is 18144, while the sum is 32.

The square root of 3947234 is about 1986.7647067532. The cubic root of 3947234 is about 158.0390065527.

The spelling of 3947234 in words is "three million, nine hundred forty-seven thousand, two hundred thirty-four".