988766287 has 2 divisors, whose sum is σ = 988766288. Its totient is φ = 988766286.

The previous prime is 988766279. The next prime is 988766329. The reversal of 988766287 is 782667889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988766287 - 2³ = 988766279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988766267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494383143 + 494383144.

It is an arithmetic number, because the mean of its divisors is an integer number (494383144).

Almost surely, 2^988766287 is an apocalyptic number.

988766287 is a deficient number, since it is larger than the sum of its proper divisors (1).

988766287 is an equidigital number, since it uses as much as digits as its factorization.

988766287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024, while the sum is 61.

The square root of 988766287 is about 31444.6543469633. The cubic root of 988766287 is about 996.2413190178.

The spelling of 988766287 in words is "nine hundred eighty-eight million, seven hundred sixty-six thousand, two hundred eighty-seven".