997703471 has 16 divisors (see below), whose sum is σ = 1077753600. Its totient is φ = 920491200.

The previous prime is 997703461. The next prime is 997703489. The reversal of 997703471 is 174307799.

It is a cyclic number.

It is not a de Polignac number, because 997703471 - 2¹⁸ = 997441327 is a prime.

It is a super-3 number, since 3×997703471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997703461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755750 + ... + 757068.

It is an arithmetic number, because the mean of its divisors is an integer number (67359600).

Almost surely, 2^997703471 is an apocalyptic number.

997703471 is a deficient number, since it is larger than the sum of its proper divisors (80050129).

997703471 is a wasteful number, since it uses less digits than its factorization.

997703471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 997703471 is about 31586.4444184527. Note that the first 4 decimals coincide. The cubic root of 997703471 is about 999.2339035795.

The spelling of 997703471 in words is "nine hundred ninety-seven million, seven hundred three thousand, four hundred seventy-one".