987656323 has 2 divisors, whose sum is σ = 987656324. Its totient is φ = 987656322.

The previous prime is 987656279. The next prime is 987656333. The reversal of 987656323 is 323656789.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 987656323 - 2²⁹ = 450785411 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (987656333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493828161 + 493828162.

It is an arithmetic number, because the mean of its divisors is an integer number (493828162).

Almost surely, 2^987656323 is an apocalyptic number.

987656323 is a deficient number, since it is larger than the sum of its proper divisors (1).

987656323 is an equidigital number, since it uses as much as digits as its factorization.

987656323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 49.

The square root of 987656323 is about 31426.9999045407. Note that the first 4 decimals coincide. The cubic root of 987656323 is about 995.8683943438.

The spelling of 987656323 in words is "nine hundred eighty-seven million, six hundred fifty-six thousand, three hundred twenty-three".