2773606321 has 16 divisors (see below), whose sum is σ = 3019271760. Its totient is φ = 2539111680.

The previous prime is 2773606273. The next prime is 2773606327. The reversal of 2773606321 is 1236063772.

It can be written as a sum of positive squares in 8 ways, for example, as 835845921 + 1937760400 = 28911^2 + 44020^2 .

It is not a de Polignac number, because 2773606321 - 2¹⁵ = 2773573553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2773606327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859491 + ... + 862711.

It is an arithmetic number, because the mean of its divisors is an integer number (188704485).

Almost surely, 2^2773606321 is an apocalyptic number.

It is an amenable number.

2773606321 is a deficient number, since it is larger than the sum of its proper divisors (245665439).

2773606321 is an frugal number, since it uses more digits than its factorization.

2773606321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 2773606321 is about 52665.0388872922. The cubic root of 2773606321 is about 1405.0170877217.

The spelling of 2773606321 in words is "two billion, seven hundred seventy-three million, six hundred six thousand, three hundred twenty-one".