3721633669 has 12 divisors (see below), whose sum is σ = 4159938432. Its totient is φ = 3324531600.

The previous prime is 3721633651. The next prime is 3721633709. The reversal of 3721633669 is 9663361273.

It is not a de Polignac number, because 3721633669 - 2⁵ = 3721633637 is a prime.

It is a super-2 number, since 2×3721633669² = 27701114332468803122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721633639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349947 + ... + 360424.

It is an arithmetic number, because the mean of its divisors is an integer number (346661536).

Almost surely, 2^3721633669 is an apocalyptic number.

It is an amenable number.

3721633669 is a deficient number, since it is larger than the sum of its proper divisors (438304763).

3721633669 is a wasteful number, since it uses less digits than its factorization.

3721633669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710428 (or 710415 counting only the distinct ones).

The product of its digits is 734832, while the sum is 46.

The square root of 3721633669 is about 61005.1937870867. The cubic root of 3721633669 is about 1549.6889655467.

The spelling of 3721633669 in words is "three billion, seven hundred twenty-one million, six hundred thirty-three thousand, six hundred sixty-nine".