491364 has 18 divisors (see below), whose sum is σ = 1242150. Its totient is φ = 163776.

The previous prime is 491357. The next prime is 491371. The reversal of 491364 is 463194.

491364 = T₁₀₇ + T₁₀₈ + ... + T₁₆₀.

It is an interprime number because it is at equal distance from previous prime (491357) and next prime (491371).

It can be written as a sum of positive squares in only one way, i.e., 324900 + 166464 = 570^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6789 + ... + 6860.

2⁴⁹¹³⁶⁴ is an apocalyptic number.

It is an amenable number.

491364 is an abundant number, since it is smaller than the sum of its proper divisors (750786).

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

491364 is a wasteful number, since it uses less digits than its factorization.

491364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13659 (or 13654 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 491364 is about 700.9736086330. The cubic root of 491364 is about 78.9104363397.

It can be divided in two parts, 4913 and 64, that multiplied together give a cube (314432 = 68³).

The spelling of 491364 in words is "four hundred ninety-one thousand, three hundred sixty-four".