2879073649 has 3 divisors (see below), whose sum is σ = 2879127307. Its totient is φ = 2879019992.

The previous prime is 2879073601. The next prime is 2879073661. The reversal of 2879073649 is 9463709782.

The square root of 2879073649 is 53657.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2180423025 + 698650624 = 46695^2 + 26432^2 .

It is not a de Polignac number, because 2879073649 - 2⁷ = 2879073521 is a prime.

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 2879073649.

It is not an unprimeable number, because it can be changed into a prime (2879073149) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26829 + ... + 80485.

Almost surely, 2^2879073649 is an apocalyptic number.

2879073649 is the 53657-th square number.

2879073649 is the 26829-th centered octagonal number.

It is an amenable number.

2879073649 is a deficient number, since it is larger than the sum of its proper divisors (53658).

2879073649 is an frugal number, since it uses more digits than its factorization.

2879073649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107314 (or 53657 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The cubic root of 2879073649 is about 1422.6047623051.

The spelling of 2879073649 in words is "two billion, eight hundred seventy-nine million, seventy-three thousand, six hundred forty-nine".