287976001 has 2 divisors, whose sum is σ = 287976002. Its totient is φ = 287976000.

The previous prime is 287975993. The next prime is 287976041. The reversal of 287976001 is 100679782.

287976001 = 11999² + 12000².

It is an a-pointer prime, because the next prime (287976041) can be obtained adding 287976001 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144000000 + 143976001 = 12000^2 + 11999^2 .

It is a cyclic number.

It is not a de Polignac number, because 287976001 - 2³ = 287975993 is a prime.

It is not a weakly prime, because it can be changed into another prime (287976041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143988000 + 143988001.

It is an arithmetic number, because the mean of its divisors is an integer number (143988001).

Almost surely, 2^287976001 is an apocalyptic number.

287976001 is the 12000-th centered square number.

It is an amenable number.

287976001 is a deficient number, since it is larger than the sum of its proper divisors (1).

287976001 is an equidigital number, since it uses as much as digits as its factorization.

287976001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 287976001 is about 16969.8556564280. The cubic root of 287976001 is about 660.3671059935.

The spelling of 287976001 in words is "two hundred eighty-seven million, nine hundred seventy-six thousand, one".