2198964717 has 6 divisors (see below), whose sum is σ = 3176282382. Its totient is φ = 1465976472.

The previous prime is 2198964709. The next prime is 2198964721. The reversal of 2198964717 is 7174698912.

It can be written as a sum of positive squares in only one way, i.e., 1755693801 + 443270916 = 41901^2 + 21054^2 .

It is not a de Polignac number, because 2198964717 - 2³ = 2198964709 is a prime.

It is a super-2 number, since 2×2198964717² = 9670891653221780178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198964787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122164698 + ... + 122164715.

It is an arithmetic number, because the mean of its divisors is an integer number (529380397).

Almost surely, 2^2198964717 is an apocalyptic number.

It is an amenable number.

2198964717 is a deficient number, since it is larger than the sum of its proper divisors (977317665).

2198964717 is a wasteful number, since it uses less digits than its factorization.

2198964717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244329419 (or 244329416 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 2198964717 is about 46893.1201457101. The cubic root of 2198964717 is about 1300.3874026877.

The spelling of 2198964717 in words is "two billion, one hundred ninety-eight million, nine hundred sixty-four thousand, seven hundred seventeen".