492090397 has 2 divisors, whose sum is σ = 492090398. Its totient is φ = 492090396.

The previous prime is 492090341. The next prime is 492090407. The reversal of 492090397 is 793090294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491996761 + 93636 = 22181^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 492090397 - 2¹¹ = 492088349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492090307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246045198 + 246045199.

It is an arithmetic number, because the mean of its divisors is an integer number (246045199).

Almost surely, 2^492090397 is an apocalyptic number.

It is an amenable number.

492090397 is a deficient number, since it is larger than the sum of its proper divisors (1).

492090397 is an equidigital number, since it uses as much as digits as its factorization.

492090397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 492090397 is about 22183.1106249777. The cubic root of 492090397 is about 789.4930235436.

The spelling of 492090397 in words is "four hundred ninety-two million, ninety thousand, three hundred ninety-seven".