2891328007 has 2 divisors, whose sum is σ = 2891328008. Its totient is φ = 2891328006.

The previous prime is 2891327969. The next prime is 2891328017. The reversal of 2891328007 is 7008231982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2891328007 - 2¹¹ = 2891325959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2891328017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445664003 + 1445664004.

It is an arithmetic number, because the mean of its divisors is an integer number (1445664004).

Almost surely, 2^2891328007 is an apocalyptic number.

2891328007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891328007 is an equidigital number, since it uses as much as digits as its factorization.

2891328007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2891328007 is about 53771.0703538622. The cubic root of 2891328007 is about 1424.6202754717.

Adding to 2891328007 its reverse (7008231982), we get a palindrome (9899559989).

The spelling of 2891328007 in words is "two billion, eight hundred ninety-one million, three hundred twenty-eight thousand, seven".