7198334649 has 45 divisors (see below), whose sum is σ = 11833295551. Its totient is φ = 4357536480.

The previous prime is 7198334629. The next prime is 7198334651. The reversal of 7198334649 is 9464338917.

It is a happy number.

The square root of 7198334649 is 84843.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6670805625 + 527529024 = 81675^2 + 22968^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7198334649 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7198334595 and 7198334604.

It is not an unprimeable number, because it can be changed into a prime (7198334629) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 8399029 + ... + 8399885.

Almost surely, 2^7198334649 is an apocalyptic number.

7198334649 is the 84843-rd square number.

7198334649 is the 42422-nd centered octagonal number.

It is an amenable number.

7198334649 is a deficient number, since it is larger than the sum of its proper divisors (4634960902).

7198334649 is an frugal number, since it uses more digits than its factorization.

With its successor (7198334650) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1748).

7198334649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 871 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The cubic root of 7198334649 is about 1930.8298800728.

The spelling of 7198334649 in words is "seven billion, one hundred ninety-eight million, three hundred thirty-four thousand, six hundred forty-nine".