492779 has 16 divisors (see below), whose sum is σ = 616896. Its totient is φ = 384000.

The previous prime is 492769. The next prime is 492781. The reversal of 492779 is 977294.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 492779 - 2⁴ = 492763 is a prime.

It is a super-2 number, since 2×492779² = 485662285682, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 492779.

It is not an unprimeable number, because it can be changed into a prime (492719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4829 + ... + 4929.

It is an arithmetic number, because the mean of its divisors is an integer number (38556).

2⁴⁹²⁷⁷⁹ is an apocalyptic number.

492779 is a deficient number, since it is larger than the sum of its proper divisors (124117).

492779 is a wasteful number, since it uses less digits than its factorization.

492779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 31752, while the sum is 38.

The square root of 492779 is about 701.9821935064. The cubic root of 492779 is about 78.9861108948.

The spelling of 492779 in words is "four hundred ninety-two thousand, seven hundred seventy-nine".