2864814721 has 8 divisors (see below), whose sum is σ = 3036587400. Its totient is φ = 2693403648.

The previous prime is 2864814709. The next prime is 2864814727. The reversal of 2864814721 is 1274184682.

It can be written as a sum of positive squares in 4 ways, for example, as 17098225 + 2847716496 = 4135^2 + 53364^2 .

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 2864814721 - 2²⁹ = 2327943809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864814727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73996 + ... + 105853.

It is an arithmetic number, because the mean of its divisors is an integer number (379573425).

Almost surely, 2^2864814721 is an apocalyptic number.

It is an amenable number.

2864814721 is a deficient number, since it is larger than the sum of its proper divisors (171772679).

2864814721 is a wasteful number, since it uses less digits than its factorization.

2864814721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180803.

The product of its digits is 172032, while the sum is 43.

The square root of 2864814721 is about 53523.9639881054. The cubic root of 2864814721 is about 1420.2523391074.

The spelling of 2864814721 in words is "two billion, eight hundred sixty-four million, eight hundred fourteen thousand, seven hundred twenty-one".