988654223 has 2 divisors, whose sum is σ = 988654224. Its totient is φ = 988654222.

The previous prime is 988654133. The next prime is 988654231. The reversal of 988654223 is 322456889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 988654223 - 2¹² = 988650127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988654253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494327111 + 494327112.

It is an arithmetic number, because the mean of its divisors is an integer number (494327112).

Almost surely, 2^988654223 is an apocalyptic number.

988654223 is a deficient number, since it is larger than the sum of its proper divisors (1).

988654223 is an equidigital number, since it uses as much as digits as its factorization.

988654223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 47.

The square root of 988654223 is about 31442.8723719701. The cubic root of 988654223 is about 996.2036805294.

The spelling of 988654223 in words is "nine hundred eighty-eight million, six hundred fifty-four thousand, two hundred twenty-three".