491874 has 16 divisors (see below), whose sum is σ = 998112. Its totient is φ = 161568.

The previous prime is 491873. The next prime is 491899. The reversal of 491874 is 478194.

It is not an unprimeable number, because it can be changed into a prime (491873) 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, 124 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (62382).

2⁴⁹¹⁸⁷⁴ is an apocalyptic number.

491874 is an abundant number, since it is smaller than the sum of its proper divisors (506238).

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

491874 is a wasteful number, since it uses less digits than its factorization.

491874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its digits is 8064, while the sum is 33.

The square root of 491874 is about 701.3372940319. The cubic root of 491874 is about 78.9377279924.

The spelling of 491874 in words is "four hundred ninety-one thousand, eight hundred seventy-four".