997905476 has 12 divisors (see below), whose sum is σ = 1755479040. Its totient is φ = 496340040.

The previous prime is 997905473. The next prime is 997905499. The reversal of 997905476 is 674509799.

It is a super-3 number, since 3×997905476³ (a number of 28 digits) contains 333 as substring.

It is a pancake number, because a pancake can be divided into 997905476 parts by 44674 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (997905473) 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, 652316 + ... + 653843.

It is an arithmetic number, because the mean of its divisors is an integer number (146289920).

Almost surely, 2^997905476 is an apocalyptic number.

It is an amenable number.

997905476 is a deficient number, since it is larger than the sum of its proper divisors (757573564).

997905476 is a wasteful number, since it uses less digits than its factorization.

997905476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306354 (or 1306352 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 56.

The square root of 997905476 is about 31589.6419099679. The cubic root of 997905476 is about 999.3013373175.

The spelling of 997905476 in words is "nine hundred ninety-seven million, nine hundred five thousand, four hundred seventy-six".