631066 has 8 divisors (see below), whose sum is σ = 996480. Its totient is φ = 298908.

The previous prime is 631061. The next prime is 631121. The reversal of 631066 is 660136.

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

It is not an unprimeable number, because it can be changed into a prime (631061) 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, 8266 + ... + 8341.

It is an arithmetic number, because the mean of its divisors is an integer number (124560).

2⁶³¹⁰⁶⁶ is an apocalyptic number.

631066 is a deficient number, since it is larger than the sum of its proper divisors (365414).

631066 is a wasteful number, since it uses less digits than its factorization.

631066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16628.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 631066 is about 794.3966263775. The cubic root of 631066 is about 85.7745129623.

The spelling of 631066 in words is "six hundred thirty-one thousand, sixty-six".