3618722 has 8 divisors (see below), whose sum is σ = 5747436. Its totient is φ = 1702912.

The previous prime is 3618709. The next prime is 3618743. The reversal of 3618722 is 2278163.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3389281 + 229441 = 1841^2 + 479^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53183 + ... + 53250.

Almost surely, 2^3618722 is an apocalyptic number.

3618722 is a deficient number, since it is larger than the sum of its proper divisors (2128714).

3618722 is a wasteful number, since it uses less digits than its factorization.

3618722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106452.

The product of its digits is 4032, while the sum is 29.

The square root of 3618722 is about 1902.2938784531. The cubic root of 3618722 is about 153.5271095580.

The spelling of 3618722 in words is "three million, six hundred eighteen thousand, seven hundred twenty-two".