3621331669 has 16 divisors (see below), whose sum is σ = 3838679424. Its totient is φ = 3409384000.

The previous prime is 3621331631. The next prime is 3621331723. The reversal of 3621331669 is 9661331263.

It is a cyclic number.

It is not a de Polignac number, because 3621331669 - 2⁹ = 3621331157 is a prime.

It is a super-2 number, since 2×3621331669² = 26228086113804651122, 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 (3621331069) 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, 397374 + ... + 406384.

It is an arithmetic number, because the mean of its divisors is an integer number (239917464).

Almost surely, 2^3621331669 is an apocalyptic number.

It is an amenable number.

3621331669 is a deficient number, since it is larger than the sum of its proper divisors (217347755).

3621331669 is a wasteful number, since it uses less digits than its factorization.

3621331669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308.

The product of its digits is 104976, while the sum is 40.

The square root of 3621331669 is about 60177.5013522496. The cubic root of 3621331669 is about 1535.6400643898.

The spelling of 3621331669 in words is "three billion, six hundred twenty-one million, three hundred thirty-one thousand, six hundred sixty-nine".