631327 has 4 divisors (see below), whose sum is σ = 658800. Its totient is φ = 603856.

The previous prime is 631307. The next prime is 631339. The reversal of 631327 is 723136.

631327 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 a de Polignac number, because none of the positive numbers 2^k-631327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631298 and 631307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631307) 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, 13702 + ... + 13747.

It is an arithmetic number, because the mean of its divisors is an integer number (164700).

2⁶³¹³²⁷ is an apocalyptic number.

631327 is a deficient number, since it is larger than the sum of its proper divisors (27473).

631327 is a wasteful number, since it uses less digits than its factorization.

631327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27472.

The product of its digits is 756, while the sum is 22.

The square root of 631327 is about 794.5608850176. The cubic root of 631327 is about 85.7863363756.

Subtracting 631327 from its reverse (723136), we obtain a square (91809 = 303²).

The spelling of 631327 in words is "six hundred thirty-one thousand, three hundred twenty-seven".