497248681 has 2 divisors, whose sum is σ = 497248682. Its totient is φ = 497248680.

The previous prime is 497248651. The next prime is 497248693. The reversal of 497248681 is 186842794.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 496888681 + 360000 = 22291^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 497248681 - 2²¹ = 495151529 is a prime.

It is a super-2 number, since 2×497248681² = 494512501512479522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (497248651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248624340 + 248624341.

It is an arithmetic number, because the mean of its divisors is an integer number (248624341).

Almost surely, 2^497248681 is an apocalyptic number.

It is an amenable number.

497248681 is a deficient number, since it is larger than the sum of its proper divisors (1).

497248681 is an equidigital number, since it uses as much as digits as its factorization.

497248681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 49.

The square root of 497248681 is about 22299.0735457776. The cubic root of 497248681 is about 792.2420319573.

The spelling of 497248681 in words is "four hundred ninety-seven million, two hundred forty-eight thousand, six hundred eighty-one".