631047 has 8 divisors (see below), whose sum is σ = 885760. Its totient is φ = 398520.

The previous prime is 631039. The next prime is 631061. The reversal of 631047 is 740136.

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

It is not a de Polignac number, because 631047 - 2³ = 631039 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631247) 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, 5479 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (110720).

2⁶³¹⁰⁴⁷ is an apocalyptic number.

631047 is a deficient number, since it is larger than the sum of its proper divisors (254713).

631047 is a wasteful number, since it uses less digits than its factorization.

631047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 631047 is about 794.3846675258. The cubic root of 631047 is about 85.7736521268.

The spelling of 631047 in words is "six hundred thirty-one thousand, forty-seven".