491612 has 12 divisors (see below), whose sum is σ = 938616. Its totient is φ = 223440.

The previous prime is 491611. The next prime is 491627. The reversal of 491612 is 216194.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491611) 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, 5543 + ... + 5630.

It is an arithmetic number, because the mean of its divisors is an integer number (78218).

2⁴⁹¹⁶¹² is an apocalyptic number.

It is an amenable number.

491612 is a deficient number, since it is larger than the sum of its proper divisors (447004).

491612 is a wasteful number, since it uses less digits than its factorization.

491612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11188 (or 11186 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 491612 is about 701.1504831347. The cubic root of 491612 is about 78.9237099323.

It can be divided in two parts, 49 and 1612, that added together give a palindrome (1661).

The spelling of 491612 in words is "four hundred ninety-one thousand, six hundred twelve".