1197448397 has 8 divisors (see below), whose sum is σ = 1274894712. Its totient is φ = 1120780800.

The previous prime is 1197448393. The next prime is 1197448403. The reversal of 1197448397 is 7938447911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 257474116 + 939974281 = 16046^2 + 30659^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1197448397 - 2² = 1197448393 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 (1197448393) 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 7 ways as a sum of consecutive naturals, for example, 191504 + ... + 197657.

It is an arithmetic number, because the mean of its divisors is an integer number (159361839).

Almost surely, 2^1197448397 is an apocalyptic number.

1197448397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1197448397 is a deficient number, since it is larger than the sum of its proper divisors (77446315).

1197448397 is a wasteful number, since it uses less digits than its factorization.

1197448397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389359.

The product of its digits is 1524096, while the sum is 53.

The square root of 1197448397 is about 34604.1673357415. The cubic root of 1197448397 is about 1061.9048450416.

The spelling of 1197448397 in words is "one billion, one hundred ninety-seven million, four hundred forty-eight thousand, three hundred ninety-seven".