997753900 has 108 divisors (see below), whose sum is σ = 2563318576. Its totient is φ = 334857600.

The previous prime is 997753891. The next prime is 997753907. The reversal of 997753900 is 9357799.

It is not an unprimeable number, because it can be changed into a prime (997753907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 154129 + ... + 160471.

Almost surely, 2^997753900 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 997753900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281659288).

997753900 is an abundant number, since it is smaller than the sum of its proper divisors (1565564676).

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

997753900 is a wasteful number, since it uses less digits than its factorization.

997753900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392 (or 6374 counting only the distinct ones).

The product of its (nonzero) digits is 535815, while the sum is 49.

The square root of 997753900 is about 31587.2426780180. The cubic root of 997753900 is about 999.2507387478.

The spelling of 997753900 in words is "nine hundred ninety-seven million, seven hundred fifty-three thousand, nine hundred".