631434 has 8 divisors (see below), whose sum is σ = 1262880. Its totient is φ = 210476.

The previous prime is 631429. The next prime is 631453. The reversal of 631434 is 434136.

631434 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

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

631434 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 631434.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631434.

It is an unprimeable number.

631434 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52614 + ... + 52625.

It is an arithmetic number, because the mean of its divisors is an integer number (157860).

2⁶³¹⁴³⁴ is an apocalyptic number.

631434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631434 is a wasteful number, since it uses less digits than its factorization.

631434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105244.

The product of its digits is 864, while the sum is 21.

The square root of 631434 is about 794.6282149534. The cubic root of 631434 is about 85.7911825802.

The spelling of 631434 in words is "six hundred thirty-one thousand, four hundred thirty-four".