677623 has 4 divisors (see below), whose sum is σ = 681328. Its totient is φ = 673920.

The previous prime is 677587. The next prime is 677627. The reversal of 677623 is 326776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 677623 - 2⁹ = 677111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563 + ... + 1948.

It is an arithmetic number, because the mean of its divisors is an integer number (170332).

2⁶⁷⁷⁶²³ is an apocalyptic number.

677623 is a deficient number, since it is larger than the sum of its proper divisors (3705).

677623 is a wasteful number, since it uses less digits than its factorization.

677623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704.

The product of its digits is 10584, while the sum is 31.

The square root of 677623 is about 823.1785954457. The cubic root of 677623 is about 87.8340104470.

The spelling of 677623 in words is "six hundred seventy-seven thousand, six hundred twenty-three".