997269073 has 4 divisors (see below), whose sum is σ = 997338420. Its totient is φ = 997199728.

The previous prime is 997269059. The next prime is 997269089. The reversal of 997269073 is 370962799.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 370962799 = 101 ⋅3672899.

It can be written as a sum of positive squares in 2 ways, for example, as 184334929 + 812934144 = 13577^2 + 28512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997269073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 997269073.

It is not an unprimeable number, because it can be changed into a prime (997260073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4138 + ... + 44851.

It is an arithmetic number, because the mean of its divisors is an integer number (249334605).

Almost surely, 2^997269073 is an apocalyptic number.

It is an amenable number.

997269073 is a deficient number, since it is larger than the sum of its proper divisors (69347).

997269073 is a wasteful number, since it uses less digits than its factorization.

997269073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69346.

The product of its (nonzero) digits is 1285956, while the sum is 52.

The square root of 997269073 is about 31579.5673339582. The cubic root of 997269073 is about 999.0888610780.

The spelling of 997269073 in words is "nine hundred ninety-seven million, two hundred sixty-nine thousand, seventy-three".