997130 has 8 divisors (see below), whose sum is σ = 1794852. Its totient is φ = 398848.

The previous prime is 997123. The next prime is 997141. The reversal of 997130 is 31799.

It can be written as a sum of positive squares in 2 ways, for example, as 942841 + 54289 = 971^2 + 233^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 997093 and 997102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49847 + ... + 49866.

2⁹⁹⁷¹³⁰ is an apocalyptic number.

997130 is a deficient number, since it is larger than the sum of its proper divisors (797722).

997130 is a wasteful number, since it uses less digits than its factorization.

997130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99720.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 997130 is about 998.5639689074. The cubic root of 997130 is about 99.9042416660.

It can be divided in two parts, 9971 and 30, that added together give a palindrome (10001).

The spelling of 997130 in words is "nine hundred ninety-seven thousand, one hundred thirty".