997353700 has 288 divisors, whose sum is σ = 2799820800. Its totient is φ = 300672000.

The previous prime is 997353593. The next prime is 997353727. The reversal of 997353700 is 7353799.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16904271 + ... + 16904329.

It is an arithmetic number, because the mean of its divisors is an integer number (9721600).

Almost surely, 2^997353700 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 997353700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399910400).

997353700 is an abundant number, since it is smaller than the sum of its proper divisors (1802467100).

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

997353700 is a wasteful number, since it uses less digits than its factorization.

997353700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 43.

The square root of 997353700 is about 31580.9072067286. The cubic root of 997353700 is about 999.1171207536.

The spelling of 997353700 in words is "nine hundred ninety-seven million, three hundred fifty-three thousand, seven hundred".