997026 has 16 divisors (see below), whose sum is σ = 2013984. Its totient is φ = 329024.

The previous prime is 997021. The next prime is 997037. The reversal of 997026 is 620799.

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 997026.

It is not an unprimeable number, because it can be changed into a prime (997021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 135 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (125874).

2⁹⁹⁷⁰²⁶ is an apocalyptic number.

997026 is an abundant number, since it is smaller than the sum of its proper divisors (1016958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997026 is a wasteful number, since it uses less digits than its factorization.

997026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 997026 is about 998.5118927684. The cubic root of 997026 is about 99.9007682298.

The spelling of 997026 in words is "nine hundred ninety-seven thousand, twenty-six".