888999997 has 2 divisors, whose sum is σ = 888999998. Its totient is φ = 888999996.

The previous prime is 888999973. The next prime is 889000001. The reversal of 888999997 is 799999888.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 590781636 + 298218361 = 24306^2 + 17269^2 .

It is a cyclic number.

It is not a de Polignac number, because 888999997 - 2⁷ = 888999869 is a prime.

It is a super-3 number, since 3×888999997³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (888999497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444499998 + 444499999.

It is an arithmetic number, because the mean of its divisors is an integer number (444499999).

Almost surely, 2^888999997 is an apocalyptic number.

It is an amenable number.

888999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

888999997 is an equidigital number, since it uses as much as digits as its factorization.

888999997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211631616, while the sum is 76.

The square root of 888999997 is about 29816.1029814428. The cubic root of 888999997 is about 961.5397732756.

The spelling of 888999997 in words is "eight hundred eighty-eight million, nine hundred ninety-nine thousand, nine hundred ninety-seven".