679177441 has 4 divisors (see below), whose sum is σ = 679229892. Its totient is φ = 679124992.

The previous prime is 679177427. The next prime is 679177451. The reversal of 679177441 is 144771976.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33814225 + 645363216 = 5815^2 + 25404^2 .

It is a cyclic number.

It is not a de Polignac number, because 679177441 - 2¹⁵ = 679144673 is a prime.

It is a super-2 number, since 2×679177441² = 922563992726616962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679177391 and 679177400.

It is not an unprimeable number, because it can be changed into a prime (679177451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8721 + ... + 37873.

It is an arithmetic number, because the mean of its divisors is an integer number (169807473).

Almost surely, 2^679177441 is an apocalyptic number.

It is an amenable number.

679177441 is a deficient number, since it is larger than the sum of its proper divisors (52451).

679177441 is a wasteful number, since it uses less digits than its factorization.

679177441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52450.

The product of its digits is 296352, while the sum is 46.

The square root of 679177441 is about 26061.0329994803. The cubic root of 679177441 is about 879.0112176583.

The spelling of 679177441 in words is "six hundred seventy-nine million, one hundred seventy-seven thousand, four hundred forty-one".