505008697 has 4 divisors (see below), whose sum is σ = 522422820. Its totient is φ = 487594576.

The previous prime is 505008683. The next prime is 505008701. The reversal of 505008697 is 796800505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796800505 = 5 ⋅159360101.

It can be written as a sum of positive squares in 2 ways, for example, as 336502336 + 168506361 = 18344^2 + 12981^2 .

It is a cyclic number.

It is not a de Polignac number, because 505008697 - 2¹⁵ = 504975929 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (505008607) 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, 8707018 + ... + 8707075.

It is an arithmetic number, because the mean of its divisors is an integer number (130605705).

Almost surely, 2^505008697 is an apocalyptic number.

It is an amenable number.

505008697 is a deficient number, since it is larger than the sum of its proper divisors (17414123).

505008697 is a wasteful number, since it uses less digits than its factorization.

505008697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414122.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 505008697 is about 22472.3985591214. The cubic root of 505008697 is about 796.3419956026.

The spelling of 505008697 in words is "five hundred five million, eight thousand, six hundred ninety-seven".