677833889 has 2 divisors, whose sum is σ = 677833890. Its totient is φ = 677833888.

The previous prime is 677833883. The next prime is 677833901. The reversal of 677833889 is 988338776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459030625 + 218803264 = 21425^2 + 14792^2 .

It is a cyclic number.

It is not a de Polignac number, because 677833889 - 2¹² = 677829793 is a prime.

It is not a weakly prime, because it can be changed into another prime (677833883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338916944 + 338916945.

It is an arithmetic number, because the mean of its divisors is an integer number (338916945).

Almost surely, 2^677833889 is an apocalyptic number.

It is an amenable number.

677833889 is a deficient number, since it is larger than the sum of its proper divisors (1).

677833889 is an equidigital number, since it uses as much as digits as its factorization.

677833889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 59.

The square root of 677833889 is about 26035.2432099260. The cubic root of 677833889 is about 878.4312136630.

The spelling of 677833889 in words is "six hundred seventy-seven million, eight hundred thirty-three thousand, eight hundred eighty-nine".