3965722 has 4 divisors (see below), whose sum is σ = 5948586. Its totient is φ = 1982860.

The previous prime is 3965707. The next prime is 3965723. The reversal of 3965722 is 2275693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2247001 + 1718721 = 1499^2 + 1311^2 .

It is not an unprimeable number, because it can be changed into a prime (3965723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991429 + ... + 991432.

Almost surely, 2^3965722 is an apocalyptic number.

3965722 is a deficient number, since it is larger than the sum of its proper divisors (1982864).

3965722 is a wasteful number, since it uses less digits than its factorization.

3965722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982863.

The product of its digits is 22680, while the sum is 34.

The square root of 3965722 is about 1991.4120618295. The cubic root of 3965722 is about 158.2853626299.

The spelling of 3965722 in words is "three million, nine hundred sixty-five thousand, seven hundred twenty-two".