988397258 has 8 divisors (see below), whose sum is σ = 1482878820. Its totient is φ = 494104320.

The previous prime is 988397257. The next prime is 988397287. The reversal of 988397258 is 852793889.

It can be written as a sum of positive squares in 2 ways, for example, as 888457249 + 99940009 = 29807^2 + 9997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 988397197 and 988397206.

It is not an unprimeable number, because it can be changed into a prime (988397251) 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 in 3 ways as a sum of consecutive naturals, for example, 33233 + ... + 55508.

Almost surely, 2^988397258 is an apocalyptic number.

988397258 is a deficient number, since it is larger than the sum of its proper divisors (494481562).

988397258 is a wasteful number, since it uses less digits than its factorization.

988397258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94312.

The product of its digits is 8709120, while the sum is 59.

The square root of 988397258 is about 31438.7858862266. The cubic root of 988397258 is about 996.1173639809.

The spelling of 988397258 in words is "nine hundred eighty-eight million, three hundred ninety-seven thousand, two hundred fifty-eight".