997588472833 has 8 divisors (see below), whose sum is σ = 1001346346728. Its totient is φ = 993831725184.

The previous prime is 997588472831. The next prime is 997588472843. The reversal of 997588472833 is 338274885799.

It can be written as a sum of positive squares in 4 ways, for example, as 5638207744 + 991950265089 = 75088^2 + 995967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 997588472833 - 2¹ = 997588472831 is a prime.

It is a super-2 number, since 2×997588472833² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997588472831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514835 + ... + 2071207.

It is an arithmetic number, because the mean of its divisors is an integer number (125168293341).

Almost surely, 2^997588472833 is an apocalyptic number.

It is an amenable number.

997588472833 is a deficient number, since it is larger than the sum of its proper divisors (3757873895).

997588472833 is a wasteful number, since it uses less digits than its factorization.

997588472833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563123.

The product of its digits is 731566080, while the sum is 73.

The spelling of 997588472833 in words is "nine hundred ninety-seven billion, five hundred eighty-eight million, four hundred seventy-two thousand, eight hundred thirty-three".