497896779 has 4 divisors (see below), whose sum is σ = 663862376. Its totient is φ = 331931184.

The previous prime is 497896733. The next prime is 497896781. The reversal of 497896779 is 977698794.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-497896779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497896079) 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 in 3 ways as a sum of consecutive naturals, for example, 82982794 + ... + 82982799.

It is an arithmetic number, because the mean of its divisors is an integer number (165965594).

Almost surely, 2^497896779 is an apocalyptic number.

497896779 is a deficient number, since it is larger than the sum of its proper divisors (165965597).

497896779 is a wasteful number, since it uses less digits than its factorization.

497896779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165965596.

The product of its digits is 48009024, while the sum is 66.

The square root of 497896779 is about 22313.6007627635. The cubic root of 497896779 is about 792.5860768224.

The spelling of 497896779 in words is "four hundred ninety-seven million, eight hundred ninety-six thousand, seven hundred seventy-nine".