287196972 has 12 divisors (see below), whose sum is σ = 670126296. Its totient is φ = 95732320.

The previous prime is 287196971. The next prime is 287196977. The reversal of 287196972 is 279691782.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (287196971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11966529 + ... + 11966552.

It is an arithmetic number, because the mean of its divisors is an integer number (55843858).

Almost surely, 2^287196972 is an apocalyptic number.

It is an amenable number.

287196972 is an abundant number, since it is smaller than the sum of its proper divisors (382929324).

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

287196972 is a wasteful number, since it uses less digits than its factorization.

287196972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23933088 (or 23933086 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The square root of 287196972 is about 16946.8867937447. The cubic root of 287196972 is about 659.7710960100.

The spelling of 287196972 in words is "two hundred eighty-seven million, one hundred ninety-six thousand, nine hundred seventy-two".