997285223 has 8 divisors (see below), whose sum is σ = 1088204160. Its totient is φ = 906409080.

The previous prime is 997285207. The next prime is 997285231. The reversal of 997285223 is 322582799.

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 997285223 - 2⁴ = 997285207 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 (997285253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56318 + ... + 71876.

It is an arithmetic number, because the mean of its divisors is an integer number (136025520).

Almost surely, 2^997285223 is an apocalyptic number.

997285223 is a deficient number, since it is larger than the sum of its proper divisors (90918937).

997285223 is a wasteful number, since it uses less digits than its factorization.

997285223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21397.

The product of its digits is 544320, while the sum is 47.

The square root of 997285223 is about 31579.8230362363. The cubic root of 997285223 is about 999.0942542056.

The spelling of 997285223 in words is "nine hundred ninety-seven million, two hundred eighty-five thousand, two hundred twenty-three".