1195877397 has 16 divisors (see below), whose sum is σ = 1873263168. Its totient is φ = 669022080.

The previous prime is 1195877377. The next prime is 1195877411. The reversal of 1195877397 is 7937785911.

It is a happy number.

It is not a de Polignac number, because 1195877397 - 2¹⁹ = 1195353109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195877327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1393368 + ... + 1394225.

It is an arithmetic number, because the mean of its divisors is an integer number (117078948).

Almost surely, 2^1195877397 is an apocalyptic number.

It is an amenable number.

1195877397 is a deficient number, since it is larger than the sum of its proper divisors (677385771).

1195877397 is a wasteful number, since it uses less digits than its factorization.

1195877397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787620.

The product of its digits is 3333960, while the sum is 57.

The square root of 1195877397 is about 34581.4603075116. The cubic root of 1195877397 is about 1061.4402508801.

The spelling of 1195877397 in words is "one billion, one hundred ninety-five million, eight hundred seventy-seven thousand, three hundred ninety-seven".