997209093 has 16 divisors (see below), whose sum is σ = 1367150400. Its totient is φ = 646158720.

The previous prime is 997209071. The next prime is 997209131. The reversal of 997209093 is 390902799.

It is a happy number.

It is not a de Polignac number, because 997209093 - 2⁹ = 997208581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997209013) 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 15 ways as a sum of consecutive naturals, for example, 18018 + ... + 48156.

It is an arithmetic number, because the mean of its divisors is an integer number (85446900).

Almost surely, 2^997209093 is an apocalyptic number.

It is an amenable number.

997209093 is a deficient number, since it is larger than the sum of its proper divisors (369941307).

997209093 is a wasteful number, since it uses less digits than its factorization.

997209093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30452.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 997209093 is about 31578.6176549893. The cubic root of 997209093 is about 999.0688308598.

The spelling of 997209093 in words is "nine hundred ninety-seven million, two hundred nine thousand, ninety-three".