492131677 has 4 divisors (see below), whose sum is σ = 492537276. Its totient is φ = 491726080.

The previous prime is 492131671. The next prime is 492131693. The reversal of 492131677 is 776131294.

492131677 is nontrivially palindromic in base 4.

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

It can be written as a sum of positive squares in 2 ways, for example, as 366377881 + 125753796 = 19141^2 + 11214^2 .

It is a cyclic number.

It is not a de Polignac number, because 492131677 - 2³ = 492131669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492131671) 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, 200974 + ... + 203407.

It is an arithmetic number, because the mean of its divisors is an integer number (123134319).

Almost surely, 2^492131677 is an apocalyptic number.

It is an amenable number.

492131677 is a deficient number, since it is larger than the sum of its proper divisors (405599).

492131677 is a wasteful number, since it uses less digits than its factorization.

492131677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405598.

The product of its digits is 63504, while the sum is 40.

The square root of 492131677 is about 22184.0410430562. The cubic root of 492131677 is about 789.5150990003.

The spelling of 492131677 in words is "four hundred ninety-two million, one hundred thirty-one thousand, six hundred seventy-seven".