290064287 has 2 divisors, whose sum is σ = 290064288. Its totient is φ = 290064286.

The previous prime is 290064277. The next prime is 290064301. The reversal of 290064287 is 782460092.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 290064287 - 2⁸ = 290064031 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290064287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290064277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145032143 + 145032144.

It is an arithmetic number, because the mean of its divisors is an integer number (145032144).

Almost surely, 2^290064287 is an apocalyptic number.

290064287 is a deficient number, since it is larger than the sum of its proper divisors (1).

290064287 is an equidigital number, since it uses as much as digits as its factorization.

290064287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 290064287 is about 17031.2737926439. The cubic root of 290064287 is about 661.9595018170.

The spelling of 290064287 in words is "two hundred ninety million, sixty-four thousand, two hundred eighty-seven".