1198714917 has 4 divisors (see below), whose sum is σ = 1598286560. Its totient is φ = 799143276.

The previous prime is 1198714879. The next prime is 1198714919. The reversal of 1198714917 is 7194178911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1198714917 - 2²⁸ = 930279461 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 (1198714919) 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, 199785817 + ... + 199785822.

It is an arithmetic number, because the mean of its divisors is an integer number (399571640).

Almost surely, 2^1198714917 is an apocalyptic number.

It is an amenable number.

1198714917 is a deficient number, since it is larger than the sum of its proper divisors (399571643).

1198714917 is an equidigital number, since it uses as much as digits as its factorization.

1198714917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399571642.

The product of its digits is 127008, while the sum is 48.

The square root of 1198714917 is about 34622.4626073883. The cubic root of 1198714917 is about 1062.2790991191.

The spelling of 1198714917 in words is "one billion, one hundred ninety-eight million, seven hundred fourteen thousand, nine hundred seventeen".