8198613 has 6 divisors (see below), whose sum is σ = 11842454. Its totient is φ = 5465736.

The previous prime is 8198611. The next prime is 8198627. The reversal of 8198613 is 3168918.

It can be written as a sum of positive squares in only one way, i.e., 8191044 + 7569 = 2862^2 + 87^2 .

It is not a de Polignac number, because 8198613 - 2¹ = 8198611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8198611) 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, 455470 + ... + 455487.

Almost surely, 2^8198613 is an apocalyptic number.

It is an amenable number.

8198613 is a deficient number, since it is larger than the sum of its proper divisors (3643841).

8198613 is a wasteful number, since it uses less digits than its factorization.

8198613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910963 (or 910960 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 8198613 is about 2863.3220217084. The cubic root of 8198613 is about 201.6415972601.

The spelling of 8198613 in words is "eight million, one hundred ninety-eight thousand, six hundred thirteen".