2791897529 has 2 divisors, whose sum is σ = 2791897530. Its totient is φ = 2791897528.

The previous prime is 2791897513. The next prime is 2791897609. The reversal of 2791897529 is 9257981972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2583383929 + 208513600 = 50827^2 + 14440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2791897529 - 2⁴ = 2791897513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2791894529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395948764 + 1395948765.

It is an arithmetic number, because the mean of its divisors is an integer number (1395948765).

Almost surely, 2^2791897529 is an apocalyptic number.

It is an amenable number.

2791897529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791897529 is an equidigital number, since it uses as much as digits as its factorization.

2791897529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 59.

The square root of 2791897529 is about 52838.4095994571. The cubic root of 2791897529 is about 1408.0988964047.

The spelling of 2791897529 in words is "two billion, seven hundred ninety-one million, eight hundred ninety-seven thousand, five hundred twenty-nine".