677546249 has 2 divisors, whose sum is σ = 677546250. Its totient is φ = 677546248.

The previous prime is 677546239. The next prime is 677546263. The reversal of 677546249 is 942645776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616628224 + 60918025 = 24832^2 + 7805^2 .

It is a cyclic number.

It is not a de Polignac number, because 677546249 - 2²⁰ = 676497673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677546197 and 677546206.

It is not a weakly prime, because it can be changed into another prime (677546239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338773124 + 338773125.

It is an arithmetic number, because the mean of its divisors is an integer number (338773125).

Almost surely, 2^677546249 is an apocalyptic number.

It is an amenable number.

677546249 is a deficient number, since it is larger than the sum of its proper divisors (1).

677546249 is an equidigital number, since it uses as much as digits as its factorization.

677546249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 50.

The square root of 677546249 is about 26029.7185732001. The cubic root of 677546249 is about 878.3069414741.

The spelling of 677546249 in words is "six hundred seventy-seven million, five hundred forty-six thousand, two hundred forty-nine".