198348679 has 4 divisors (see below), whose sum is σ = 198383976. Its totient is φ = 198313384.

The previous prime is 198348671. The next prime is 198348701. The reversal of 198348679 is 976843891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976843891 = 313 ⋅3120907.

It is a cyclic number.

It is not a de Polignac number, because 198348679 - 2³ = 198348671 is a prime.

It is a super-2 number, since 2×198348679² = 78684396922090082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198348671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7129 + ... + 21154.

It is an arithmetic number, because the mean of its divisors is an integer number (49595994).

Almost surely, 2^198348679 is an apocalyptic number.

198348679 is a deficient number, since it is larger than the sum of its proper divisors (35297).

198348679 is an equidigital number, since it uses as much as digits as its factorization.

198348679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35296.

The product of its digits is 2612736, while the sum is 55.

The square root of 198348679 is about 14083.6315984195. The cubic root of 198348679 is about 583.1896002515.

The spelling of 198348679 in words is "one hundred ninety-eight million, three hundred forty-eight thousand, six hundred seventy-nine".