3722013 has 6 divisors (see below), whose sum is σ = 5376254. Its totient is φ = 2481336.

The previous prime is 3722011. The next prime is 3722027. The reversal of 3722013 is 3102273.

It can be written as a sum of positive squares in only one way, i.e., 3229209 + 492804 = 1797^2 + 702^2 .

It is not a de Polignac number, because 3722013 - 2¹ = 3722011 is a prime.

It is a Duffinian number.

It is a Curzon number.

3722013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206770 + ... + 206787.

Almost surely, 2^3722013 is an apocalyptic number.

It is an amenable number.

3722013 is a deficient number, since it is larger than the sum of its proper divisors (1654241).

3722013 is a wasteful number, since it uses less digits than its factorization.

3722013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413563 (or 413560 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 3722013 is about 1929.2519275616. The cubic root of 3722013 is about 154.9741614925.

Adding to 3722013 its reverse (3102273), we get a palindrome (6824286).

The spelling of 3722013 in words is "three million, seven hundred twenty-two thousand, thirteen".