2897961069 has 4 divisors (see below), whose sum is σ = 3863948096. Its totient is φ = 1931974044.

The previous prime is 2897961007. The next prime is 2897961071. The reversal of 2897961069 is 9601697982.

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 not a de Polignac number, because 2897961069 - 2¹⁹ = 2897436781 is a prime.

It is a super-2 number, since 2×2897961069² = 16796356714879245522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897961089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482993509 + ... + 482993514.

It is an arithmetic number, because the mean of its divisors is an integer number (965987024).

Almost surely, 2^2897961069 is an apocalyptic number.

It is an amenable number.

2897961069 is a deficient number, since it is larger than the sum of its proper divisors (965987027).

2897961069 is an equidigital number, since it uses as much as digits as its factorization.

2897961069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965987026.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The square root of 2897961069 is about 53832.7137435965. The cubic root of 2897961069 is about 1425.7088614790.

It can be divided in two parts, 2897 and 961069, that added together give a triangular number (963966 = T₁₃₈₈).

The spelling of 2897961069 in words is "two billion, eight hundred ninety-seven million, nine hundred sixty-one thousand, sixty-nine".