492978 has 8 divisors (see below), whose sum is σ = 985968. Its totient is φ = 164324.

The previous prime is 492967. The next prime is 492979. The reversal of 492978 is 879294.

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

492978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (492979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41076 + ... + 41087.

It is an arithmetic number, because the mean of its divisors is an integer number (123246).

2⁴⁹²⁹⁷⁸ is an apocalyptic number.

492978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

492978 is a wasteful number, since it uses less digits than its factorization.

492978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82168.

The product of its digits is 36288, while the sum is 39.

The square root of 492978 is about 702.1239206864. The cubic root of 492978 is about 78.9967418407.

The spelling of 492978 in words is "four hundred ninety-two thousand, nine hundred seventy-eight".