497663977 has 2 divisors, whose sum is σ = 497663978. Its totient is φ = 497663976.

The previous prime is 497663963. The next prime is 497663993. The reversal of 497663977 is 779366794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451817536 + 45846441 = 21256^2 + 6771^2 .

It is a cyclic number.

It is not a de Polignac number, because 497663977 - 2¹⁹ = 497139689 is a prime.

It is not a weakly prime, because it can be changed into another prime (497663927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248831988 + 248831989.

It is an arithmetic number, because the mean of its divisors is an integer number (248831989).

Almost surely, 2^497663977 is an apocalyptic number.

It is an amenable number.

497663977 is a deficient number, since it is larger than the sum of its proper divisors (1).

497663977 is an equidigital number, since it uses as much as digits as its factorization.

497663977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12002256, while the sum is 58.

The square root of 497663977 is about 22308.3835586535. The cubic root of 497663977 is about 792.4625275266.

The spelling of 497663977 in words is "four hundred ninety-seven million, six hundred sixty-three thousand, nine hundred seventy-seven".