497820711 has 4 divisors (see below), whose sum is σ = 663760952. Its totient is φ = 331880472.

The previous prime is 497820703. The next prime is 497820727. The reversal of 497820711 is 117028794.

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

It is not a de Polignac number, because 497820711 - 2³ = 497820703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 497820711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497820511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82970116 + ... + 82970121.

It is an arithmetic number, because the mean of its divisors is an integer number (165940238).

Almost surely, 2^497820711 is an apocalyptic number.

497820711 is a deficient number, since it is larger than the sum of its proper divisors (165940241).

497820711 is a wasteful number, since it uses less digits than its factorization.

497820711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165940240.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 497820711 is about 22311.8961767036. The cubic root of 497820711 is about 792.5457113552.

The spelling of 497820711 in words is "four hundred ninety-seven million, eight hundred twenty thousand, seven hundred eleven".