492542647 has 2 divisors, whose sum is σ = 492542648. Its totient is φ = 492542646.

The previous prime is 492542639. The next prime is 492542671. The reversal of 492542647 is 746245294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 492542647 - 2³ = 492542639 is a prime.

It is a super-2 number, since 2×492542647² = 485196518227533218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492542627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246271323 + 246271324.

It is an arithmetic number, because the mean of its divisors is an integer number (246271324).

Almost surely, 2^492542647 is an apocalyptic number.

492542647 is a deficient number, since it is larger than the sum of its proper divisors (1).

492542647 is an equidigital number, since it uses as much as digits as its factorization.

492542647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 43.

The square root of 492542647 is about 22193.3018498825. The cubic root of 492542647 is about 789.7348076396.

The spelling of 492542647 in words is "four hundred ninety-two million, five hundred forty-two thousand, six hundred forty-seven".