677883889 has 2 divisors, whose sum is σ = 677883890. Its totient is φ = 677883888.

The previous prime is 677883797. The next prime is 677883893. The reversal of 677883889 is 988388776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 664866225 + 13017664 = 25785^2 + 3608^2 .

It is a cyclic number.

It is not a de Polignac number, because 677883889 - 2⁹ = 677883377 is a prime.

It is a super-3 number, since 3×677883889³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 677883889.

It is not a weakly prime, because it can be changed into another prime (677883389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338941944 + 338941945.

It is an arithmetic number, because the mean of its divisors is an integer number (338941945).

Almost surely, 2^677883889 is an apocalyptic number.

It is an amenable number.

677883889 is a deficient number, since it is larger than the sum of its proper divisors (1).

677883889 is an equidigital number, since it uses as much as digits as its factorization.

677883889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 64.

The square root of 677883889 is about 26036.2034290716. The cubic root of 677883889 is about 878.4528121113.

The spelling of 677883889 in words is "six hundred seventy-seven million, eight hundred eighty-three thousand, eight hundred eighty-nine".