988824817 has 2 divisors, whose sum is σ = 988824818. Its totient is φ = 988824816.

The previous prime is 988824787. The next prime is 988824821. The reversal of 988824817 is 718428889.

988824817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 796142656 + 192682161 = 28216^2 + 13881^2 .

It is a cyclic number.

It is not a de Polignac number, because 988824817 - 2¹⁹ = 988300529 is a prime.

It is not a weakly prime, because it can be changed into another prime (988824827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494412408 + 494412409.

It is an arithmetic number, because the mean of its divisors is an integer number (494412409).

Almost surely, 2^988824817 is an apocalyptic number.

It is an amenable number.

988824817 is a deficient number, since it is larger than the sum of its proper divisors (1).

988824817 is an equidigital number, since it uses as much as digits as its factorization.

988824817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2064384, while the sum is 55.

The square root of 988824817 is about 31445.5850160241. The cubic root of 988824817 is about 996.2609761247.

The spelling of 988824817 in words is "nine hundred eighty-eight million, eight hundred twenty-four thousand, eight hundred seventeen".