889479697 has 2 divisors, whose sum is σ = 889479698. Its totient is φ = 889479696.

The previous prime is 889479671. The next prime is 889479719. The reversal of 889479697 is 796974988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859896976 + 29582721 = 29324^2 + 5439^2 .

It is a cyclic number.

It is not a de Polignac number, because 889479697 - 2¹¹ = 889477649 is a prime.

It is not a weakly prime, because it can be changed into another prime (889479607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444739848 + 444739849.

It is an arithmetic number, because the mean of its divisors is an integer number (444739849).

Almost surely, 2^889479697 is an apocalyptic number.

It is an amenable number.

889479697 is a deficient number, since it is larger than the sum of its proper divisors (1).

889479697 is an equidigital number, since it uses as much as digits as its factorization.

889479697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 67.

The square root of 889479697 is about 29824.1462073938. The cubic root of 889479697 is about 961.7126895459.

The spelling of 889479697 in words is "eight hundred eighty-nine million, four hundred seventy-nine thousand, six hundred ninety-seven".