3621543 has 8 divisors (see below), whose sum is σ = 4920048. Its totient is φ = 2368704.

The previous prime is 3621529. The next prime is 3621559. The reversal of 3621543 is 3451263.

It is a happy number.

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

It is not a de Polignac number, because 3621543 - 2⁸ = 3621287 is a prime.

3621543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621593) 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, 11230 + ... + 11547.

It is an arithmetic number, because the mean of its divisors is an integer number (615006).

Almost surely, 2^3621543 is an apocalyptic number.

3621543 is a deficient number, since it is larger than the sum of its proper divisors (1298505).

3621543 is a wasteful number, since it uses less digits than its factorization.

3621543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22833.

The product of its digits is 2160, while the sum is 24.

The square root of 3621543 is about 1903.0352072413. The cubic root of 3621543 is about 153.5669935725.

The spelling of 3621543 in words is "three million, six hundred twenty-one thousand, five hundred forty-three".