287960417 has 2 divisors, whose sum is σ = 287960418. Its totient is φ = 287960416.

The previous prime is 287960389. The next prime is 287960419. The reversal of 287960417 is 714069782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287946961 + 13456 = 16969^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 287960417 - 2⁶ = 287960353 is a prime.

Together with 287960419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (287960419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143980208 + 143980209.

It is an arithmetic number, because the mean of its divisors is an integer number (143980209).

Almost surely, 2^287960417 is an apocalyptic number.

It is an amenable number.

287960417 is a deficient number, since it is larger than the sum of its proper divisors (1).

287960417 is an equidigital number, since it uses as much as digits as its factorization.

287960417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 287960417 is about 16969.3964830809. The cubic root of 287960417 is about 660.3551937200.

The spelling of 287960417 in words is "two hundred eighty-seven million, nine hundred sixty thousand, four hundred seventeen".