2828883721 has 4 divisors (see below), whose sum is σ = 2829059200. Its totient is φ = 2828708244.

The previous prime is 2828883637. The next prime is 2828883731. The reversal of 2828883721 is 1273888282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2828883721 - 2²⁹ = 2292012809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2828883731) 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, 60801 + ... + 96718.

It is an arithmetic number, because the mean of its divisors is an integer number (707264800).

Almost surely, 2^2828883721 is an apocalyptic number.

It is an amenable number.

2828883721 is a deficient number, since it is larger than the sum of its proper divisors (175479).

2828883721 is a wasteful number, since it uses less digits than its factorization.

2828883721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175478.

The product of its digits is 688128, while the sum is 49.

The square root of 2828883721 is about 53187.2514894312. The cubic root of 2828883721 is about 1414.2896576542.

The spelling of 2828883721 in words is "two billion, eight hundred twenty-eight million, eight hundred eighty-three thousand, seven hundred twenty-one".