889954397 has 2 divisors, whose sum is σ = 889954398. Its totient is φ = 889954396.

The previous prime is 889954363. The next prime is 889954423. The reversal of 889954397 is 793459988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886491076 + 3463321 = 29774^2 + 1861^2 .

It is a cyclic number.

It is not a de Polignac number, because 889954397 - 2⁶ = 889954333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889954327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444977198 + 444977199.

It is an arithmetic number, because the mean of its divisors is an integer number (444977199).

Almost surely, 2^889954397 is an apocalyptic number.

It is an amenable number.

889954397 is a deficient number, since it is larger than the sum of its proper divisors (1).

889954397 is an equidigital number, since it uses as much as digits as its factorization.

889954397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 62.

The square root of 889954397 is about 29832.1034625452. The cubic root of 889954397 is about 961.8837422883.

The spelling of 889954397 in words is "eight hundred eighty-nine million, nine hundred fifty-four thousand, three hundred ninety-seven".