997274303 has 4 divisors (see below), whose sum is σ = 1007148408. Its totient is φ = 987400200.

The previous prime is 997274287. The next prime is 997274323. The reversal of 997274303 is 303472799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303472799 = 7 ⋅43353257.

It is a cyclic number.

It is not a de Polignac number, because 997274303 - 2⁴ = 997274287 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 (997274323) 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 3 ways as a sum of consecutive naturals, for example, 4936901 + ... + 4937102.

It is an arithmetic number, because the mean of its divisors is an integer number (251787102).

Almost surely, 2^997274303 is an apocalyptic number.

997274303 is a deficient number, since it is larger than the sum of its proper divisors (9874105).

997274303 is a wasteful number, since it uses less digits than its factorization.

997274303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874104.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 997274303 is about 31579.6501405573. The cubic root of 997274303 is about 999.0906075895.

The spelling of 997274303 in words is "nine hundred ninety-seven million, two hundred seventy-four thousand, three hundred three".