675631 has 8 divisors (see below), whose sum is σ = 780624. Its totient is φ = 577920.

The previous prime is 675629. The next prime is 675643. The reversal of 675631 is 136576.

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 675631 - 2¹ = 675629 is a prime.

It is a super-2 number, since 2×675631² = 912954496322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 675631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675601) 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, 1620 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (97578).

2⁶⁷⁵⁶³¹ is an apocalyptic number.

675631 is a deficient number, since it is larger than the sum of its proper divisors (104993).

675631 is a wasteful number, since it uses less digits than its factorization.

675631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641.

The product of its digits is 3780, while the sum is 28.

The square root of 675631 is about 821.9677609250. The cubic root of 675631 is about 87.7478577844.

The spelling of 675631 in words is "six hundred seventy-five thousand, six hundred thirty-one".