2897289605 has 32 divisors (see below), whose sum is σ = 4144035840. Its totient is φ = 1902735360.

The previous prime is 2897289601. The next prime is 2897289677. The reversal of 2897289605 is 5069827982.

It is not a de Polignac number, because 2897289605 - 2² = 2897289601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897289601) 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 31 ways as a sum of consecutive naturals, for example, 91481 + ... + 119009.

It is an arithmetic number, because the mean of its divisors is an integer number (129501120).

Almost surely, 2^2897289605 is an apocalyptic number.

It is an amenable number.

2897289605 is a deficient number, since it is larger than the sum of its proper divisors (1246746235).

2897289605 is a wasteful number, since it uses less digits than its factorization.

2897289605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27669.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 2897289605 is about 53826.4768027780. The cubic root of 2897289605 is about 1425.5987396728.

The spelling of 2897289605 in words is "two billion, eight hundred ninety-seven million, two hundred eighty-nine thousand, six hundred five".