4989287 has 2 divisors, whose sum is σ = 4989288. Its totient is φ = 4989286.

The previous prime is 4989277. The next prime is 4989293. The reversal of 4989287 is 7829894.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4989287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4989277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494643 + 2494644.

It is an arithmetic number, because the mean of its divisors is an integer number (2494644).

Almost surely, 2^4989287 is an apocalyptic number.

4989287 is a deficient number, since it is larger than the sum of its proper divisors (1).

4989287 is an equidigital number, since it uses as much as digits as its factorization.

4989287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 4989287 is about 2233.6711933496. The cubic root of 4989287 is about 170.8753808589.

The spelling of 4989287 in words is "four million, nine hundred eighty-nine thousand, two hundred eighty-seven".