2797620197 has 2 divisors, whose sum is σ = 2797620198. Its totient is φ = 2797620196.

The previous prime is 2797620193. The next prime is 2797620233. The reversal of 2797620197 is 7910267972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2145635041 + 651985156 = 46321^2 + 25534^2 .

It is a cyclic number.

It is not a de Polignac number, because 2797620197 - 2² = 2797620193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2797620191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1398810098 + 1398810099.

It is an arithmetic number, because the mean of its divisors is an integer number (1398810099).

Almost surely, 2^2797620197 is an apocalyptic number.

It is an amenable number.

2797620197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2797620197 is an equidigital number, since it uses as much as digits as its factorization.

2797620197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 2797620197 is about 52892.5344164940. The cubic root of 2797620197 is about 1409.0603193570.

The spelling of 2797620197 in words is "two billion, seven hundred ninety-seven million, six hundred twenty thousand, one hundred ninety-seven".