492923909 has 2 divisors, whose sum is σ = 492923910. Its totient is φ = 492923908.

The previous prime is 492923887. The next prime is 492923911. The reversal of 492923909 is 909329294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 450712900 + 42211009 = 21230^2 + 6497^2 .

It is a cyclic number.

It is not a de Polignac number, because 492923909 - 2²⁰ = 491875333 is a prime.

Together with 492923911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492923929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246461954 + 246461955.

It is an arithmetic number, because the mean of its divisors is an integer number (246461955).

Almost surely, 2^492923909 is an apocalyptic number.

It is an amenable number.

492923909 is a deficient number, since it is larger than the sum of its proper divisors (1).

492923909 is an equidigital number, since it uses as much as digits as its factorization.

492923909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 492923909 is about 22201.8897619099. The cubic root of 492923909 is about 789.9385248323.

The spelling of 492923909 in words is "four hundred ninety-two million, nine hundred twenty-three thousand, nine hundred nine".