988269851 has 2 divisors, whose sum is σ = 988269852. Its totient is φ = 988269850.

The previous prime is 988269847. The next prime is 988269871. The reversal of 988269851 is 158962889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988269851 - 2² = 988269847 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (988269811) 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, 494134925 + 494134926.

It is an arithmetic number, because the mean of its divisors is an integer number (494134926).

Almost surely, 2^988269851 is an apocalyptic number.

988269851 is a deficient number, since it is larger than the sum of its proper divisors (1).

988269851 is an equidigital number, since it uses as much as digits as its factorization.

988269851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 56.

The square root of 988269851 is about 31436.7595499282. The cubic root of 988269851 is about 996.0745614278.

The spelling of 988269851 in words is "nine hundred eighty-eight million, two hundred sixty-nine thousand, eight hundred fifty-one".