677232749 has 2 divisors, whose sum is σ = 677232750. Its totient is φ = 677232748.

The previous prime is 677232701. The next prime is 677232763. The reversal of 677232749 is 947232776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 588062500 + 89170249 = 24250^2 + 9443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677232749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677232949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338616374 + 338616375.

It is an arithmetic number, because the mean of its divisors is an integer number (338616375).

Almost surely, 2^677232749 is an apocalyptic number.

It is an amenable number.

677232749 is a deficient number, since it is larger than the sum of its proper divisors (1).

677232749 is an equidigital number, since it uses as much as digits as its factorization.

677232749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 47.

The square root of 677232749 is about 26023.6959135323. The cubic root of 677232749 is about 878.1714566490.

The spelling of 677232749 in words is "six hundred seventy-seven million, two hundred thirty-two thousand, seven hundred forty-nine".