3722215 has 8 divisors (see below), whose sum is σ = 5104800. Its totient is φ = 2552352.

The previous prime is 3722207. The next prime is 3722219. The reversal of 3722215 is 5122273.

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

It is a cyclic number.

It is not a de Polignac number, because 3722215 - 2³ = 3722207 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53140 + ... + 53209.

It is an arithmetic number, because the mean of its divisors is an integer number (638100).

Almost surely, 2^3722215 is an apocalyptic number.

3722215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3722215 is a deficient number, since it is larger than the sum of its proper divisors (1382585).

3722215 is a wasteful number, since it uses less digits than its factorization.

3722215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106361.

The product of its digits is 840, while the sum is 22.

The square root of 3722215 is about 1929.3042787492. The cubic root of 3722215 is about 154.9769650125.

Adding to 3722215 its reverse (5122273), we get a palindrome (8844488).

The spelling of 3722215 in words is "three million, seven hundred twenty-two thousand, two hundred fifteen".