2197633457 has 2 divisors, whose sum is σ = 2197633458. Its totient is φ = 2197633456.

The previous prime is 2197633343. The next prime is 2197633489. The reversal of 2197633457 is 7543367912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231729216 + 965904241 = 35096^2 + 31079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2197633457 is a prime.

It is a super-2 number, since 2×2197633457² = 9659185622651541698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2197683457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098816728 + 1098816729.

It is an arithmetic number, because the mean of its divisors is an integer number (1098816729).

Almost surely, 2^2197633457 is an apocalyptic number.

It is an amenable number.

2197633457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197633457 is an equidigital number, since it uses as much as digits as its factorization.

2197633457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 47.

The square root of 2197633457 is about 46878.9233771425. The cubic root of 2197633457 is about 1300.1249302029.

The spelling of 2197633457 in words is "two billion, one hundred ninety-seven million, six hundred thirty-three thousand, four hundred fifty-seven".