3621633369 has 16 divisors (see below), whose sum is σ = 5118418368. Its totient is φ = 2269942272.

The previous prime is 3621633331. The next prime is 3621633409. The reversal of 3621633369 is 9633361263.

It is a happy number.

It is not a de Polignac number, because 3621633369 - 2¹⁵ = 3621600601 is a prime.

It is a super-2 number, since 2×3621633369² = 26232456518908580322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3621633369.

It is not an unprimeable number, because it can be changed into a prime (3621633319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9894 + ... + 85680.

It is an arithmetic number, because the mean of its divisors is an integer number (319901148).

Almost surely, 2^3621633369 is an apocalyptic number.

It is an amenable number.

3621633369 is a deficient number, since it is larger than the sum of its proper divisors (1496784999).

3621633369 is a wasteful number, since it uses less digits than its factorization.

3621633369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76744.

The product of its digits is 314928, while the sum is 42.

The square root of 3621633369 is about 60180.0080508469. The cubic root of 3621633369 is about 1535.6827088996.

The spelling of 3621633369 in words is "three billion, six hundred twenty-one million, six hundred thirty-three thousand, three hundred sixty-nine".