676631 has 4 divisors (see below), whose sum is σ = 681264. Its totient is φ = 672000.

The previous prime is 676601. The next prime is 676649. The reversal of 676631 is 136676.

It is a happy number.

676631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 676631 - 2¹⁰ = 675607 is a prime.

It is a super-2 number, since 2×676631² = 915659020322, 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 = 676594 and 676603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676601) 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, 2090 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (170316).

2⁶⁷⁶⁶³¹ is an apocalyptic number.

676631 is a deficient number, since it is larger than the sum of its proper divisors (4633).

676631 is a wasteful number, since it uses less digits than its factorization.

676631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632.

The product of its digits is 4536, while the sum is 29.

The square root of 676631 is about 822.5758323705. The cubic root of 676631 is about 87.7911282488.

The spelling of 676631 in words is "six hundred seventy-six thousand, six hundred thirty-one".