492677621 has 2 divisors, whose sum is σ = 492677622. Its totient is φ = 492677620.

The previous prime is 492677611. The next prime is 492677651. The reversal of 492677621 is 126776294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398800900 + 93876721 = 19970^2 + 9689^2 .

It is a cyclic number.

It is not a de Polignac number, because 492677621 - 2⁶ = 492677557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492677611) 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, 246338810 + 246338811.

It is an arithmetic number, because the mean of its divisors is an integer number (246338811).

Almost surely, 2^492677621 is an apocalyptic number.

It is an amenable number.

492677621 is a deficient number, since it is larger than the sum of its proper divisors (1).

492677621 is an equidigital number, since it uses as much as digits as its factorization.

492677621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 492677621 is about 22196.3425140269. The cubic root of 492677621 is about 789.8069394176.

The spelling of 492677621 in words is "four hundred ninety-two million, six hundred seventy-seven thousand, six hundred twenty-one".