677343479 has 8 divisors (see below), whose sum is σ = 687359520. Its totient is φ = 667340800.

The previous prime is 677343473. The next prime is 677343503. The reversal of 677343479 is 974343776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677343479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677343473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148919 + ... + 153399.

It is an arithmetic number, because the mean of its divisors is an integer number (85919940).

Almost surely, 2^677343479 is an apocalyptic number.

677343479 is a deficient number, since it is larger than the sum of its proper divisors (10016041).

677343479 is a wasteful number, since it uses less digits than its factorization.

677343479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6681.

The product of its digits is 2667168, while the sum is 50.

The square root of 677343479 is about 26025.8233107043. The cubic root of 677343479 is about 878.2193154422.

The spelling of 677343479 in words is "six hundred seventy-seven million, three hundred forty-three thousand, four hundred seventy-nine".