886994389 has 2 divisors, whose sum is σ = 886994390. Its totient is φ = 886994388.

The previous prime is 886994323. The next prime is 886994399. The reversal of 886994389 is 983499688.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 716900625 + 170093764 = 26775^2 + 13042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-886994389 is a prime.

It is a super-2 number, since 2×886994389² = 1573518092234966642, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 886994389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (886994399) 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, 443497194 + 443497195.

It is an arithmetic number, because the mean of its divisors is an integer number (443497195).

Almost surely, 2^886994389 is an apocalyptic number.

It is an amenable number.

886994389 is a deficient number, since it is larger than the sum of its proper divisors (1).

886994389 is an equidigital number, since it uses as much as digits as its factorization.

886994389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26873856, while the sum is 64.

The square root of 886994389 is about 29782.4510240511. The cubic root of 886994389 is about 960.8161422607.

The spelling of 886994389 in words is "eight hundred eighty-six million, nine hundred ninety-four thousand, three hundred eighty-nine".