2882891997 has 6 divisors (see below), whose sum is σ = 4164177342. Its totient is φ = 1921927992.

The previous prime is 2882891993. The next prime is 2882892007. The reversal of 2882891997 is 7991982882.

It can be written as a sum of positive squares in only one way, i.e., 1778393241 + 1104498756 = 42171^2 + 33234^2 .

It is not a de Polignac number, because 2882891997 - 2² = 2882891993 is a prime.

It is a super-2 number, since 2×2882891997² = 16622132532733296018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2882891993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 160160658 + ... + 160160675.

It is an arithmetic number, because the mean of its divisors is an integer number (694029557).

Almost surely, 2^2882891997 is an apocalyptic number.

It is an amenable number.

2882891997 is a deficient number, since it is larger than the sum of its proper divisors (1281285345).

2882891997 is a wasteful number, since it uses less digits than its factorization.

2882891997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320321339 (or 320321336 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 63.

The square root of 2882891997 is about 53692.5692903590. The cubic root of 2882891997 is about 1423.2333904794.

The spelling of 2882891997 in words is "two billion, eight hundred eighty-two million, eight hundred ninety-one thousand, nine hundred ninety-seven".