677327581 has 4 divisors (see below), whose sum is σ = 774088672. Its totient is φ = 580566492.

The previous prime is 677327569. The next prime is 677327597. The reversal of 677327581 is 185723776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677327581 - 2¹¹ = 677325533 is a prime.

It is a super-2 number, since 2×677327581² = 917545303966623122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677327551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48380535 + ... + 48380548.

It is an arithmetic number, because the mean of its divisors is an integer number (193522168).

Almost surely, 2^677327581 is an apocalyptic number.

It is an amenable number.

677327581 is a deficient number, since it is larger than the sum of its proper divisors (96761091).

677327581 is an equidigital number, since it uses as much as digits as its factorization.

677327581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96761090.

The product of its digits is 493920, while the sum is 46.

The square root of 677327581 is about 26025.5178814947. The cubic root of 677327581 is about 878.2124444625.

The spelling of 677327581 in words is "six hundred seventy-seven million, three hundred twenty-seven thousand, five hundred eighty-one".