491277205 has 16 divisors (see below), whose sum is σ = 625106880. Its totient is φ = 369608832.

The previous prime is 491277191. The next prime is 491277209. The reversal of 491277205 is 502772194.

491277205 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 491277205 - 2⁵ = 491277173 is a prime.

It is a super-2 number, since 2×491277205² = 482706584305224050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491277209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5859 + ... + 31888.

It is an arithmetic number, because the mean of its divisors is an integer number (39069180).

Almost surely, 2^491277205 is an apocalyptic number.

It is an amenable number.

491277205 is a deficient number, since it is larger than the sum of its proper divisors (133829675).

491277205 is a wasteful number, since it uses less digits than its factorization.

491277205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37908.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 491277205 is about 22164.7739668150. The cubic root of 491277205 is about 789.0578979479.

The spelling of 491277205 in words is "four hundred ninety-one million, two hundred seventy-seven thousand, two hundred five".