3108961621 has 8 divisors (see below), whose sum is σ = 3273204320. Its totient is φ = 2944780272.

The previous prime is 3108961591. The next prime is 3108961631. The reversal of 3108961621 is 1261698013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3108961621 - 2²⁵ = 3075407189 is a prime.

It is a super-3 number, since 3×3108961621³ (a number of 29 digits) contains 333 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 (3108961631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118891 + ... + 142663.

It is an arithmetic number, because the mean of its divisors is an integer number (409150540).

Almost surely, 2^3108961621 is an apocalyptic number.

It is an amenable number.

3108961621 is a deficient number, since it is larger than the sum of its proper divisors (164242699).

3108961621 is a wasteful number, since it uses less digits than its factorization.

3108961621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30675.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 3108961621 is about 55758.0632823630. The cubic root of 3108961621 is about 1459.5034310845.

The spelling of 3108961621 in words is "three billion, one hundred eight million, nine hundred sixty-one thousand, six hundred twenty-one".