497779769 has 2 divisors, whose sum is σ = 497779770. Its totient is φ = 497779768.

The previous prime is 497779757. The next prime is 497779781. The reversal of 497779769 is 967977794.

It is a balanced prime because it is at equal distance from previous prime (497779757) and next prime (497779781).

It can be written as a sum of positive squares in only one way, i.e., 322561600 + 175218169 = 17960^2 + 13237^2 .

It is a cyclic number.

It is not a de Polignac number, because 497779769 - 2¹² = 497775673 is a prime.

It is a super-2 number, since 2×497779769² = 495569396851386722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (497779069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248889884 + 248889885.

It is an arithmetic number, because the mean of its divisors is an integer number (248889885).

Almost surely, 2^497779769 is an apocalyptic number.

It is an amenable number.

497779769 is a deficient number, since it is larger than the sum of its proper divisors (1).

497779769 is an equidigital number, since it uses as much as digits as its factorization.

497779769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42007896, while the sum is 65.

The square root of 497779769 is about 22310.9786652222. The cubic root of 497779769 is about 792.5239837899.

The spelling of 497779769 in words is "four hundred ninety-seven million, seven hundred seventy-nine thousand, seven hundred sixty-nine".