988073231 has 2 divisors, whose sum is σ = 988073232. Its totient is φ = 988073230.

The previous prime is 988073209. The next prime is 988073267. The reversal of 988073231 is 132370889.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988073231 is a prime.

It is a super-2 number, since 2×988073231² = 1952577419637558722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988073291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494036615 + 494036616.

It is an arithmetic number, because the mean of its divisors is an integer number (494036616).

Almost surely, 2^988073231 is an apocalyptic number.

988073231 is a deficient number, since it is larger than the sum of its proper divisors (1).

988073231 is an equidigital number, since it uses as much as digits as its factorization.

988073231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 988073231 is about 31433.6321636555. The cubic root of 988073231 is about 996.0084994544.

The spelling of 988073231 in words is "nine hundred eighty-eight million, seventy-three thousand, two hundred thirty-one".