3621788446 has 4 divisors (see below), whose sum is σ = 5432682672. Its totient is φ = 1810894222.

The previous prime is 3621788431. The next prime is 3621788447. The reversal of 3621788446 is 6448871263.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3621788446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621788447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905447110 + ... + 905447113.

It is an arithmetic number, because the mean of its divisors is an integer number (1358170668).

Almost surely, 2^3621788446 is an apocalyptic number.

3621788446 is a deficient number, since it is larger than the sum of its proper divisors (1810894226).

3621788446 is a wasteful number, since it uses less digits than its factorization.

3621788446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810894225.

The product of its digits is 1548288, while the sum is 49.

The square root of 3621788446 is about 60181.2964798865. The cubic root of 3621788446 is about 1535.7046277084.

The spelling of 3621788446 in words is "three billion, six hundred twenty-one million, seven hundred eighty-eight thousand, four hundred forty-six".