662317889 has 2 divisors, whose sum is σ = 662317890. Its totient is φ = 662317888.

The previous prime is 662317853. The next prime is 662317919. The reversal of 662317889 is 988713266.

662317889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619611664 + 42706225 = 24892^2 + 6535^2 .

It is a cyclic number.

It is not a de Polignac number, because 662317889 - 2⁸ = 662317633 is a prime.

It is not a weakly prime, because it can be changed into another prime (662317819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331158944 + 331158945.

It is an arithmetic number, because the mean of its divisors is an integer number (331158945).

Almost surely, 2^662317889 is an apocalyptic number.

It is an amenable number.

662317889 is a deficient number, since it is larger than the sum of its proper divisors (1).

662317889 is an equidigital number, since it uses as much as digits as its factorization.

662317889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 662317889 is about 25735.5374725301. The cubic root of 662317889 is about 871.6768158359.

The spelling of 662317889 in words is "six hundred sixty-two million, three hundred seventeen thousand, eight hundred eighty-nine".