493779 has 16 divisors (see below), whose sum is σ = 774144. Its totient is φ = 276000.

The previous prime is 493777. The next prime is 493793. The reversal of 493779 is 977394.

It is not a de Polignac number, because 493779 - 2¹ = 493777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

493779 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (493777) 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, 147 + ... + 1004.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁴⁹³⁷⁷⁹ is an apocalyptic number.

493779 is a deficient number, since it is larger than the sum of its proper divisors (280365).

493779 is a wasteful number, since it uses less digits than its factorization.

493779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178.

The product of its digits is 47628, while the sum is 39.

The square root of 493779 is about 702.6941012987. The cubic root of 493779 is about 79.0395038235.

It can be divided in two parts, 49 and 3779, that added together give a triangular number (3828 = T₈₇).

The spelling of 493779 in words is "four hundred ninety-three thousand, seven hundred seventy-nine".