492662891 has 4 divisors (see below), whose sum is σ = 563043312. Its totient is φ = 422282472.

The previous prime is 492662879. The next prime is 492662897. The reversal of 492662891 is 198266294.

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

It is a cyclic number.

It is not a de Polignac number, because 492662891 - 2⁶ = 492662827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492662897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35190200 + ... + 35190213.

It is an arithmetic number, because the mean of its divisors is an integer number (140760828).

Almost surely, 2^492662891 is an apocalyptic number.

492662891 is a deficient number, since it is larger than the sum of its proper divisors (70380421).

492662891 is an equidigital number, since it uses as much as digits as its factorization.

492662891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70380420.

The product of its digits is 373248, while the sum is 47.

The square root of 492662891 is about 22196.0107001236. The cubic root of 492662891 is about 789.7990681636.

The spelling of 492662891 in words is "four hundred ninety-two million, six hundred sixty-two thousand, eight hundred ninety-one".