508797997 has 4 divisors (see below), whose sum is σ = 510403356. Its totient is φ = 507192640.

The previous prime is 508797967. The next prime is 508798001. The reversal of 508797997 is 799797805.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10883401 + 497914596 = 3299^2 + 22314^2 .

It is a cyclic number.

It is not a de Polignac number, because 508797997 - 2¹⁹ = 508273709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508797937) 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, 802204 + ... + 802837.

It is an arithmetic number, because the mean of its divisors is an integer number (127600839).

Almost surely, 2^508797997 is an apocalyptic number.

It is an amenable number.

508797997 is a deficient number, since it is larger than the sum of its proper divisors (1605359).

508797997 is a wasteful number, since it uses less digits than its factorization.

508797997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605358.

The product of its (nonzero) digits is 10001880, while the sum is 61.

The square root of 508797997 is about 22556.5510883202. The cubic root of 508797997 is about 798.3288014042.

The spelling of 508797997 in words is "five hundred eight million, seven hundred ninety-seven thousand, nine hundred ninety-seven".