287295401 has 2 divisors, whose sum is σ = 287295402. Its totient is φ = 287295400.

The previous prime is 287295389. The next prime is 287295403. The reversal of 287295401 is 104592782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146991376 + 140304025 = 12124^2 + 11845^2 .

It is a cyclic number.

It is not a de Polignac number, because 287295401 - 2¹⁰ = 287294377 is a prime.

Together with 287295403, 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 (287295403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143647700 + 143647701.

It is an arithmetic number, because the mean of its divisors is an integer number (143647701).

Almost surely, 2^287295401 is an apocalyptic number.

It is an amenable number.

287295401 is a deficient number, since it is larger than the sum of its proper divisors (1).

287295401 is an equidigital number, since it uses as much as digits as its factorization.

287295401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 287295401 is about 16949.7905886769. The cubic root of 287295401 is about 659.8464603047.

The spelling of 287295401 in words is "two hundred eighty-seven million, two hundred ninety-five thousand, four hundred one".