2171373604 has 27 divisors (see below), whose sum is σ = 3976225393. Its totient is φ = 1037457872.

The previous prime is 2171373563. The next prime is 2171373613. The reversal of 2171373604 is 4063731712.

The square root of 2171373604 is 46598.

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., 4284900 + 2167088704 = 2070^2 + 46552^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2171373604.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2143002 + ... + 2144014.

Almost surely, 2^2171373604 is an apocalyptic number.

2171373604 is the 46598-th square number.

It is an amenable number.

2171373604 is a deficient number, since it is larger than the sum of its proper divisors (1804851789).

2171373604 is an equidigital number, since it uses as much as digits as its factorization.

2171373604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The cubic root of 2171373604 is about 1294.9257032652.

The spelling of 2171373604 in words is "two billion, one hundred seventy-one million, three hundred seventy-three thousand, six hundred four".