491926 has 4 divisors (see below), whose sum is σ = 737892. Its totient is φ = 245962.

The previous prime is 491923. The next prime is 491951. The reversal of 491926 is 629194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 629194 = 2 ⋅314597.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122980 + ... + 122983.

It is an arithmetic number, because the mean of its divisors is an integer number (184473).

2⁴⁹¹⁹²⁶ is an apocalyptic number.

491926 is a deficient number, since it is larger than the sum of its proper divisors (245966).

491926 is a wasteful number, since it uses less digits than its factorization.

491926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245965.

The product of its digits is 3888, while the sum is 31.

The square root of 491926 is about 701.3743650861. The cubic root of 491926 is about 78.9405096108.

The spelling of 491926 in words is "four hundred ninety-one thousand, nine hundred twenty-six".