987650233 has 2 divisors, whose sum is σ = 987650234. Its totient is φ = 987650232.

The previous prime is 987650231. The next prime is 987650239. The reversal of 987650233 is 332056789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 713317264 + 274332969 = 26708^2 + 16563^2 .

It is a cyclic number.

It is not a de Polignac number, because 987650233 - 2¹ = 987650231 is a prime.

Together with 987650231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 987650233.

It is not a weakly prime, because it can be changed into another prime (987650231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493825116 + 493825117.

It is an arithmetic number, because the mean of its divisors is an integer number (493825117).

Almost surely, 2^987650233 is an apocalyptic number.

It is an amenable number.

987650233 is a deficient number, since it is larger than the sum of its proper divisors (1).

987650233 is an equidigital number, since it uses as much as digits as its factorization.

987650233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 987650233 is about 31426.9030131828. The cubic root of 987650233 is about 995.8663474607.

The spelling of 987650233 in words is "nine hundred eighty-seven million, six hundred fifty thousand, two hundred thirty-three".