497709 has 12 divisors (see below), whose sum is σ = 761436. Its totient is φ = 312192.

The previous prime is 497701. The next prime is 497711. The reversal of 497709 is 907794.

It can be written as a sum of positive squares in 2 ways, for example, as 459684 + 38025 = 678^2 + 195^2 .

It is not a de Polignac number, because 497709 - 2³ = 497701 is a prime.

497709 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1474 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (63453).

2⁴⁹⁷⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

497709 is a deficient number, since it is larger than the sum of its proper divisors (263727).

497709 is a wasteful number, since it uses less digits than its factorization.

497709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3273 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 497709 is about 705.4849395983. The cubic root of 497709 is about 79.2486424484.

The spelling of 497709 in words is "four hundred ninety-seven thousand, seven hundred nine".