631411 has 8 divisors (see below), whose sum is σ = 700848. Its totient is φ = 564000.

The previous prime is 631409. The next prime is 631429. The reversal of 631411 is 114136.

631411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 631411 - 2¹ = 631409 is a prime.

It is a Duffinian number.

631411 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (631471) 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, 201 + ... + 1141.

It is an arithmetic number, because the mean of its divisors is an integer number (87606).

2⁶³¹⁴¹¹ is an apocalyptic number.

631411 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

631411 is a deficient number, since it is larger than the sum of its proper divisors (69437).

631411 is a wasteful number, since it uses less digits than its factorization.

631411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013.

The product of its digits is 72, while the sum is 16.

The square root of 631411 is about 794.6137426448. The cubic root of 631411 is about 85.7901409188.

Adding to 631411 its reverse (114136), we get a palindrome (745547).

The spelling of 631411 in words is "six hundred thirty-one thousand, four hundred eleven".