997366260 has 192 divisors, whose sum is σ = 3187537920. Its totient is φ = 230791680.

The previous prime is 997366229. The next prime is 997366303. The reversal of 997366260 is 62663799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2047737 + ... + 2048223.

It is an arithmetic number, because the mean of its divisors is an integer number (16601760).

Almost surely, 2^997366260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997366260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593768960).

997366260 is an abundant number, since it is smaller than the sum of its proper divisors (2190171660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997366260 is a wasteful number, since it uses less digits than its factorization.

997366260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 997366260 is about 31581.1060604280. The cubic root of 997366260 is about 999.1213148051.

The spelling of 997366260 in words is "nine hundred ninety-seven million, three hundred sixty-six thousand, two hundred sixty".