6624361 has 4 divisors (see below), whose sum is σ = 6672852. Its totient is φ = 6575872.

The previous prime is 6624353. The next prime is 6624377. The reversal of 6624361 is 1634266.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1806336 + 4818025 = 1344^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 6624361 - 2³ = 6624353 is a prime.

It is an Ulam number.

It is a Duffinian number.

6624361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6624061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24040 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (1668213).

Almost surely, 2^6624361 is an apocalyptic number.

It is an amenable number.

6624361 is a deficient number, since it is larger than the sum of its proper divisors (48491).

6624361 is a wasteful number, since it uses less digits than its factorization.

6624361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48490.

The product of its digits is 5184, while the sum is 28.

The square root of 6624361 is about 2573.7834019202. The cubic root of 6624361 is about 187.8082491104.

The spelling of 6624361 in words is "six million, six hundred twenty-four thousand, three hundred sixty-one".