493861 has 8 divisors (see below), whose sum is σ = 518400. Its totient is φ = 469920.

The previous prime is 493859. The next prime is 493873. The reversal of 493861 is 168394.

493861 = T₅₃ + T₅₄ + ... + T₁₄₅.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 493861 - 2¹ = 493859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

493861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493811) 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, 2670 + ... + 2848.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁴⁹³⁸⁶¹ is an apocalyptic number.

It is an amenable number.

493861 is a deficient number, since it is larger than the sum of its proper divisors (24539).

493861 is a wasteful number, since it uses less digits than its factorization.

493861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 5184, while the sum is 31.

The square root of 493861 is about 702.7524457446. The cubic root of 493861 is about 79.0438788446.

493861 divided by its sum of digits (31) gives a triangular number (15931 = T₁₇₈).

The spelling of 493861 in words is "four hundred ninety-three thousand, eight hundred sixty-one".