3931722 has 24 divisors (see below), whose sum is σ = 8598564. Its totient is φ = 1298304.

The previous prime is 3931721. The next prime is 3931729. The reversal of 3931722 is 2271393.

It can be written as a sum of positive squares in 2 ways, for example, as 3721041 + 210681 = 1929^2 + 459^2 .

It is not an unprimeable number, because it can be changed into a prime (3931721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1068 + ... + 3000.

Almost surely, 2^3931722 is an apocalyptic number.

3931722 is an abundant number, since it is smaller than the sum of its proper divisors (4666842).

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

3931722 is a wasteful number, since it uses less digits than its factorization.

3931722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054 (or 2051 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 3931722 is about 1982.8570296418. The cubic root of 3931722 is about 157.8317120746.

The spelling of 3931722 in words is "three million, nine hundred thirty-one thousand, seven hundred twenty-two".