492878 has 4 divisors (see below), whose sum is σ = 739320. Its totient is φ = 246438.

The previous prime is 492871. The next prime is 492883. The reversal of 492878 is 878294.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492871) by changing a digit.

492878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123218 + ... + 123221.

It is an arithmetic number, because the mean of its divisors is an integer number (184830).

2⁴⁹²⁸⁷⁸ is an apocalyptic number.

492878 is a deficient number, since it is larger than the sum of its proper divisors (246442).

492878 is a wasteful number, since it uses less digits than its factorization.

492878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246441.

The product of its digits is 32256, while the sum is 38.

The square root of 492878 is about 702.0527045742. The cubic root of 492878 is about 78.9914000145.

The spelling of 492878 in words is "four hundred ninety-two thousand, eight hundred seventy-eight".