1197947895 has 8 divisors (see below), whose sum is σ = 1916716656. Its totient is φ = 638905536.

The previous prime is 1197947869. The next prime is 1197947899. The reversal of 1197947895 is 5987497911.

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

It is not a de Polignac number, because 1197947895 - 2¹³ = 1197939703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197947899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39931582 + ... + 39931611.

It is an arithmetic number, because the mean of its divisors is an integer number (239589582).

Almost surely, 2^1197947895 is an apocalyptic number.

1197947895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1197947895 is a deficient number, since it is larger than the sum of its proper divisors (718768761).

1197947895 is an equidigital number, since it uses as much as digits as its factorization.

1197947895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79863201.

The product of its digits is 5715360, while the sum is 60.

The square root of 1197947895 is about 34611.3838931644. The cubic root of 1197947895 is about 1062.0524771824.

The spelling of 1197947895 in words is "one billion, one hundred ninety-seven million, nine hundred forty-seven thousand, eight hundred ninety-five".