3736221 has 8 divisors (see below), whose sum is σ = 4990560. Its totient is φ = 2486352.

The previous prime is 3736219. The next prime is 3736231. The reversal of 3736221 is 1226373.

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

It is not a de Polignac number, because 3736221 - 2¹ = 3736219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3736191 and 3736200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3736211) 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, 2766 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (623820).

Almost surely, 2^3736221 is an apocalyptic number.

It is an amenable number.

3736221 is a deficient number, since it is larger than the sum of its proper divisors (1254339).

3736221 is a wasteful number, since it uses less digits than its factorization.

3736221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235.

The product of its digits is 1512, while the sum is 24.

The square root of 3736221 is about 1932.9306764600. The cubic root of 3736221 is about 155.1711048387.

The spelling of 3736221 in words is "three million, seven hundred thirty-six thousand, two hundred twenty-one".