492661831 has 4 divisors (see below), whose sum is σ = 509650200. Its totient is φ = 475673464.

The previous prime is 492661789. The next prime is 492661837. The reversal of 492661831 is 138166294.

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 492661831 - 2¹³ = 492653639 is a prime.

It is a super-2 number, since 2×492661831² = 485431359448545122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492661837) 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, 8494141 + ... + 8494198.

It is an arithmetic number, because the mean of its divisors is an integer number (127412550).

Almost surely, 2^492661831 is an apocalyptic number.

492661831 is a deficient number, since it is larger than the sum of its proper divisors (16988369).

492661831 is a wasteful number, since it uses less digits than its factorization.

492661831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16988368.

The product of its digits is 62208, while the sum is 40.

The square root of 492661831 is about 22195.9868219460. The cubic root of 492661831 is about 789.7985017265.

The spelling of 492661831 in words is "four hundred ninety-two million, six hundred sixty-one thousand, eight hundred thirty-one".