676731 has 8 divisors (see below), whose sum is σ = 984384. Its totient is φ = 410120.

The previous prime is 676727. The next prime is 676733. The reversal of 676731 is 137676.

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

It is a cyclic number.

It is not a de Polignac number, because 676731 - 2² = 676727 is a prime.

It is a super-2 number, since 2×676731² = 915929692722, which contains 22 as substring.

676731 is a lucky number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676731.

It is not an unprimeable number, because it can be changed into a prime (676733) 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, 10221 + ... + 10286.

It is an arithmetic number, because the mean of its divisors is an integer number (123048).

2⁶⁷⁶⁷³¹ is an apocalyptic number.

676731 is a deficient number, since it is larger than the sum of its proper divisors (307653).

676731 is a wasteful number, since it uses less digits than its factorization.

676731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20521.

The product of its digits is 5292, while the sum is 30.

The square root of 676731 is about 822.6366147942. The cubic root of 676731 is about 87.7954529499.

The spelling of 676731 in words is "six hundred seventy-six thousand, seven hundred thirty-one".