1197910398 has 8 divisors (see below), whose sum is σ = 2395820808. Its totient is φ = 399303464.

The previous prime is 1197910393. The next prime is 1197910411. The reversal of 1197910398 is 8930197911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1197910398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197910391) 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, 99825861 + ... + 99825872.

It is an arithmetic number, because the mean of its divisors is an integer number (299477601).

Almost surely, 2^1197910398 is an apocalyptic number.

1197910398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1197910398 is a wasteful number, since it uses less digits than its factorization.

1197910398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199651738.

The product of its (nonzero) digits is 122472, while the sum is 48.

The square root of 1197910398 is about 34610.8422029860. The cubic root of 1197910398 is about 1062.0413959556.

The spelling of 1197910398 in words is "one billion, one hundred ninety-seven million, nine hundred ten thousand, three hundred ninety-eight".