2791608997 has 2 divisors, whose sum is σ = 2791608998. Its totient is φ = 2791608996.

The previous prime is 2791608983. The next prime is 2791609033. The reversal of 2791608997 is 7998061972.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2787945601 + 3663396 = 52801^2 + 1914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2791608997 is a prime.

It is a super-3 number, since 3×2791608997³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2791608797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395804498 + 1395804499.

It is an arithmetic number, because the mean of its divisors is an integer number (1395804499).

Almost surely, 2^2791608997 is an apocalyptic number.

It is an amenable number.

2791608997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791608997 is an equidigital number, since it uses as much as digits as its factorization.

2791608997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The square root of 2791608997 is about 52835.6792044921. The cubic root of 2791608997 is about 1408.0503875103.

The spelling of 2791608997 in words is "two billion, seven hundred ninety-one million, six hundred eight thousand, nine hundred ninety-seven".