868989355 has 16 divisors (see below), whose sum is σ = 1134129024. Its totient is φ = 635356800.

The previous prime is 868989337. The next prime is 868989367. The reversal of 868989355 is 553989868.

It is not a de Polignac number, because 868989355 - 2⁷ = 868989227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 868989293 and 868989302.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 59619 + ... + 72748.

It is an arithmetic number, because the mean of its divisors is an integer number (70883064).

Almost surely, 2^868989355 is an apocalyptic number.

868989355 is a deficient number, since it is larger than the sum of its proper divisors (265139669).

868989355 is a wasteful number, since it uses less digits than its factorization.

868989355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132486.

The product of its digits is 18662400, while the sum is 61.

The square root of 868989355 is about 29478.6253919683. The cubic root of 868989355 is about 954.2704716069.

The spelling of 868989355 in words is "eight hundred sixty-eight million, nine hundred eighty-nine thousand, three hundred fifty-five".