1197215808 has 56 divisors (see below), whose sum is σ = 3253264512. Its totient is φ = 388283904.

The previous prime is 1197215801. The next prime is 1197215809. The reversal of 1197215808 is 8085127911.

It is a self number, because there is not a number n which added to its sum of digits gives 1197215808.

It is not an unprimeable number, because it can be changed into a prime (1197215801) 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, 77160 + ... + 91367.

Almost surely, 2^1197215808 is an apocalyptic number.

It is an amenable number.

1197215808 is an abundant number, since it is smaller than the sum of its proper divisors (2056048704).

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

1197215808 is a wasteful number, since it uses less digits than its factorization.

1197215808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168579 (or 168569 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 42.

The square root of 1197215808 is about 34600.8064645898. The cubic root of 1197215808 is about 1061.8360867887.

The spelling of 1197215808 in words is "one billion, one hundred ninety-seven million, two hundred fifteen thousand, eight hundred eight".