2731357697 has 2 divisors, whose sum is σ = 2731357698. Its totient is φ = 2731357696.

The previous prime is 2731357693. The next prime is 2731357747. The reversal of 2731357697 is 7967531372.

It is an a-pointer prime, because the next prime (2731357747) can be obtained adding 2731357697 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1542211441 + 1189146256 = 39271^2 + 34484^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731357697 - 2² = 2731357693 is a prime.

It is a super-2 number, since 2×2731357697² = 14920629737922287618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2731357693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365678848 + 1365678849.

It is an arithmetic number, because the mean of its divisors is an integer number (1365678849).

Almost surely, 2^2731357697 is an apocalyptic number.

It is an amenable number.

2731357697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731357697 is an equidigital number, since it uses as much as digits as its factorization.

2731357697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1666980, while the sum is 50.

The square root of 2731357697 is about 52262.3927599952. The cubic root of 2731357697 is about 1397.8466380477.

The spelling of 2731357697 in words is "two billion, seven hundred thirty-one million, three hundred fifty-seven thousand, six hundred ninety-seven".