3720722 has 8 divisors (see below), whose sum is σ = 5909436. Its totient is φ = 1750912.

The previous prime is 3720707. The next prime is 3720767. The reversal of 3720722 is 2270273.

It can be written as a sum of positive squares in 2 ways, for example, as 3129361 + 591361 = 1769^2 + 769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54683 + ... + 54750.

Almost surely, 2^3720722 is an apocalyptic number.

3720722 is a deficient number, since it is larger than the sum of its proper divisors (2188714).

3720722 is a wasteful number, since it uses less digits than its factorization.

3720722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109452.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 3720722 is about 1928.9173128986. The cubic root of 3720722 is about 154.9562415498.

Adding to 3720722 its reverse (2270273), we get a palindrome (5990995).

The spelling of 3720722 in words is "three million, seven hundred twenty thousand, seven hundred twenty-two".