1197864936 has 160 divisors (see below), whose sum is σ = 3522435840. Its totient is φ = 379873152.

The previous prime is 1197864929. The next prime is 1197864989. The reversal of 1197864936 is 6394687911.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (1959552) is a multiple of the sum of its prime divisors (1152).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1126341 + ... + 1127403.

It is an arithmetic number, because the mean of its divisors is an integer number (22015224).

Almost surely, 2^1197864936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197864936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761217920).

1197864936 is an abundant number, since it is smaller than the sum of its proper divisors (2324570904).

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

1197864936 is a wasteful number, since it uses less digits than its factorization.

1197864936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1152 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 1197864936 is about 34610.1854372380. The cubic root of 1197864936 is about 1062.0279605776.

The spelling of 1197864936 in words is "one billion, one hundred ninety-seven million, eight hundred sixty-four thousand, nine hundred thirty-six".