2891348417 has 2 divisors, whose sum is σ = 2891348418. Its totient is φ = 2891348416.

The previous prime is 2891348371. The next prime is 2891348477. The reversal of 2891348417 is 7148431982.

2891348417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1919841856 + 971506561 = 43816^2 + 31169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2891348417 is a prime.

It is not a weakly prime, because it can be changed into another prime (2891348477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445674208 + 1445674209.

It is an arithmetic number, because the mean of its divisors is an integer number (1445674209).

Almost surely, 2^2891348417 is an apocalyptic number.

It is an amenable number.

2891348417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891348417 is an equidigital number, since it uses as much as digits as its factorization.

2891348417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 2891348417 is about 53771.2601395950. The cubic root of 2891348417 is about 1424.6236276144.

The spelling of 2891348417 in words is "two billion, eight hundred ninety-one million, three hundred forty-eight thousand, four hundred seventeen".