3621691104 has 24 divisors (see below), whose sum is σ = 9506939400. Its totient is φ = 1207230336.

The previous prime is 3621691093. The next prime is 3621691109. The reversal of 3621691104 is 4011961263.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621691109) 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, 18862879 + ... + 18863070.

It is an arithmetic number, because the mean of its divisors is an integer number (396122475).

Almost surely, 2^3621691104 is an apocalyptic number.

It is an amenable number.

3621691104 is an abundant number, since it is smaller than the sum of its proper divisors (5885248296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3621691104 is a wasteful number, since it uses less digits than its factorization.

3621691104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37725962 (or 37725954 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3621691104 is about 60180.4877348132. The cubic root of 3621691104 is about 1535.6908693216.

The spelling of 3621691104 in words is "three billion, six hundred twenty-one million, six hundred ninety-one thousand, one hundred four".