3722261 has 4 divisors (see below), whose sum is σ = 3729132. Its totient is φ = 3715392.

The previous prime is 3722249. The next prime is 3722273. The reversal of 3722261 is 1622273.

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

It is an interprime number because it is at equal distance from previous prime (3722249) and next prime (3722273).

It can be written as a sum of positive squares in 2 ways, for example, as 3129361 + 592900 = 1769^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 3722261 - 2¹⁸ = 3460117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722221) 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, 2546 + ... + 3731.

It is an arithmetic number, because the mean of its divisors is an integer number (932283).

Almost surely, 2^3722261 is an apocalyptic number.

It is an amenable number.

3722261 is a deficient number, since it is larger than the sum of its proper divisors (6871).

3722261 is an equidigital number, since it uses as much as digits as its factorization.

3722261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870.

The product of its digits is 1008, while the sum is 23.

The square root of 3722261 is about 1929.3162001082. The cubic root of 3722261 is about 154.9776034237.

The spelling of 3722261 in words is "three million, seven hundred twenty-two thousand, two hundred sixty-one".