2873204721 has 12 divisors (see below), whose sum is σ = 4151438148. Its totient is φ = 1914891264.

The previous prime is 2873204701. The next prime is 2873204729. The reversal of 2873204721 is 1274023782.

It can be written as a sum of positive squares in 2 ways, for example, as 321843600 + 2551361121 = 17940^2 + 50511^2 .

It is not a de Polignac number, because 2873204721 - 2¹⁴ = 2873188337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2873204729) 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, 15600 + ... + 77393.

It is an arithmetic number, because the mean of its divisors is an integer number (345953179).

Almost surely, 2^2873204721 is an apocalyptic number.

It is an amenable number.

2873204721 is a deficient number, since it is larger than the sum of its proper divisors (1278233427).

2873204721 is a wasteful number, since it uses less digits than its factorization.

2873204721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96432 (or 96429 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 2873204721 is about 53602.2827965377. The cubic root of 2873204721 is about 1421.6374552739.

The spelling of 2873204721 in words is "two billion, eight hundred seventy-three million, two hundred four thousand, seven hundred twenty-one".