1197910399 has 24 divisors (see below), whose sum is σ = 1434151008. Its totient is φ = 997214400.

The previous prime is 1197910393. The next prime is 1197910411. The reversal of 1197910399 is 9930197911.

It is not a de Polignac number, because 1197910399 - 2³ = 1197910391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260014 + ... + 264580.

It is an arithmetic number, because the mean of its divisors is an integer number (59756292).

Almost surely, 2^1197910399 is an apocalyptic number.

1197910399 is a deficient number, since it is larger than the sum of its proper divisors (236240609).

1197910399 is a wasteful number, since it uses less digits than its factorization.

1197910399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 137781, while the sum is 49.

The square root of 1197910399 is about 34610.8422174324. The cubic root of 1197910399 is about 1062.0413962511.

The spelling of 1197910399 in words is "one billion, one hundred ninety-seven million, nine hundred ten thousand, three hundred ninety-nine".