677544089 has 2 divisors, whose sum is σ = 677544090. Its totient is φ = 677544088.

The previous prime is 677544067. The next prime is 677544121. The reversal of 677544089 is 980445776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349390864 + 328153225 = 18692^2 + 18115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677544089 is a prime.

It is not a weakly prime, because it can be changed into another prime (677544059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338772044 + 338772045.

It is an arithmetic number, because the mean of its divisors is an integer number (338772045).

Almost surely, 2^677544089 is an apocalyptic number.

It is an amenable number.

677544089 is a deficient number, since it is larger than the sum of its proper divisors (1).

677544089 is an equidigital number, since it uses as much as digits as its factorization.

677544089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 677544089 is about 26029.6770821307. The cubic root of 677544089 is about 878.3060081331.

The spelling of 677544089 in words is "six hundred seventy-seven million, five hundred forty-four thousand, eighty-nine".