3621449 has 8 divisors (see below), whose sum is σ = 4005960. Its totient is φ = 3252096.

The previous prime is 3621403. The next prime is 3621461. The reversal of 3621449 is 9441263.

It can be written as a sum of positive squares in 4 ways, for example, as 399424 + 3222025 = 632^2 + 1795^2 .

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 3621449 - 2¹⁶ = 3555913 is a prime.

It is a super-2 number, since 2×3621449² = 26229785719202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621469) 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, 3284 + ... + 4245.

It is an arithmetic number, because the mean of its divisors is an integer number (500745).

Almost surely, 2^3621449 is an apocalyptic number.

It is an amenable number.

3621449 is a deficient number, since it is larger than the sum of its proper divisors (384511).

3621449 is a wasteful number, since it uses less digits than its factorization.

3621449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579.

The product of its digits is 5184, while the sum is 29.

The square root of 3621449 is about 1903.0105096925. The cubic root of 3621449 is about 153.5656649103.

It can be divided in two parts, 36214 and 49, that added together give a palindrome (36263).

The spelling of 3621449 in words is "three million, six hundred twenty-one thousand, four hundred forty-nine".