497926381 has 2 divisors, whose sum is σ = 497926382. Its totient is φ = 497926380.

The previous prime is 497926367. The next prime is 497926391. The reversal of 497926381 is 183629794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264875625 + 233050756 = 16275^2 + 15266^2 .

It is a cyclic number.

It is not a de Polignac number, because 497926381 - 2¹³ = 497918189 is a prime.

It is a super-2 number, since 2×497926381² = 495861361791514322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497926301) 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 as a sum of consecutive naturals, namely, 248963190 + 248963191.

It is an arithmetic number, because the mean of its divisors is an integer number (248963191).

Almost surely, 2^497926381 is an apocalyptic number.

It is an amenable number.

497926381 is a deficient number, since it is larger than the sum of its proper divisors (1).

497926381 is an equidigital number, since it uses as much as digits as its factorization.

497926381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 497926381 is about 22314.2640703206. The cubic root of 497926381 is about 792.6017840059.

The spelling of 497926381 in words is "four hundred ninety-seven million, nine hundred twenty-six thousand, three hundred eighty-one".