889973453 has 2 divisors, whose sum is σ = 889973454. Its totient is φ = 889973452.

The previous prime is 889973449. The next prime is 889973459. The reversal of 889973453 is 354379988.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886431529 + 3541924 = 29773^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 889973453 - 2² = 889973449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (889973459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444986726 + 444986727.

It is an arithmetic number, because the mean of its divisors is an integer number (444986727).

Almost surely, 2^889973453 is an apocalyptic number.

It is an amenable number.

889973453 is a deficient number, since it is larger than the sum of its proper divisors (1).

889973453 is an equidigital number, since it uses as much as digits as its factorization.

889973453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The square root of 889973453 is about 29832.4228483038. The cubic root of 889973453 is about 961.8906076310.

The spelling of 889973453 in words is "eight hundred eighty-nine million, nine hundred seventy-three thousand, four hundred fifty-three".