2106993604 has 27 divisors (see below), whose sum is σ = 3760460557. Its totient is φ = 1032978608.

The previous prime is 2106993599. The next prime is 2106993643. The reversal of 2106993604 is 4063996012.

The square root of 2106993604 is 45902.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 497379204 + 1609614400 = 22302^2 + 40120^2 .

It is a super-3 number, since 3×2106993604³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5416242 + ... + 5416630.

Almost surely, 2^2106993604 is an apocalyptic number.

2106993604 is the 45902-nd square number.

It is an amenable number.

2106993604 is a deficient number, since it is larger than the sum of its proper divisors (1653466953).

2106993604 is an frugal number, since it uses more digits than its factorization.

2106993604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The cubic root of 2106993604 is about 1281.9991554727. Note that the first 3 decimals are identical.

The spelling of 2106993604 in words is "two billion, one hundred six million, nine hundred ninety-three thousand, six hundred four".