3722137 has 4 divisors (see below), whose sum is σ = 3792420. Its totient is φ = 3651856.

The previous prime is 3722129. The next prime is 3722143. The reversal of 3722137 is 7312273.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3426201 + 295936 = 1851^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 3722137 - 2³ = 3722129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3722177) 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, 35062 + ... + 35167.

It is an arithmetic number, because the mean of its divisors is an integer number (948105).

Almost surely, 2^3722137 is an apocalyptic number.

It is an amenable number.

3722137 is a deficient number, since it is larger than the sum of its proper divisors (70283).

3722137 is an equidigital number, since it uses as much as digits as its factorization.

3722137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70282.

The product of its digits is 1764, while the sum is 25.

The square root of 3722137 is about 1929.2840641025. The cubic root of 3722137 is about 154.9758824772.

The spelling of 3722137 in words is "three million, seven hundred twenty-two thousand, one hundred thirty-seven".