497777 has 16 divisors (see below), whose sum is σ = 622080. Its totient is φ = 388608.

The previous prime is 497773. The next prime is 497801. The reversal of 497777 is 777794.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 497777 - 2² = 497773 is a prime.

It is a Duffinian number.

497777 is a modest number, since divided by 777 gives 497 as remainder.

It is not an unprimeable number, because it can be changed into a prime (497771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5549 + ... + 5637.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁴⁹⁷⁷⁷⁷ is an apocalyptic number.

497777 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

497777 is a deficient number, since it is larger than the sum of its proper divisors (124303).

497777 is a wasteful number, since it uses less digits than its factorization.

497777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its digits is 86436, while the sum is 41.

The square root of 497777 is about 705.5331317522. The cubic root of 497777 is about 79.2522514263.

The spelling of 497777 in words is "four hundred ninety-seven thousand, seven hundred seventy-seven".