997345050 has 72 divisors (see below), whose sum is σ = 2678382144. Its totient is φ = 245494080.

The previous prime is 997345033. The next prime is 997345057. The reversal of 997345050 is 50543799.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 997344993 and 997345011.

It is not an unprimeable number, because it can be changed into a prime (997345057) 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, 5679 + ... + 45021.

It is an arithmetic number, because the mean of its divisors is an integer number (37199752).

Almost surely, 2^997345050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997345050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339191072).

997345050 is an abundant number, since it is smaller than the sum of its proper divisors (1681037094).

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

997345050 is a wasteful number, since it uses less digits than its factorization.

997345050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39384 (or 39366 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 997345050 is about 31580.7702565976. The cubic root of 997345050 is about 999.1142323139.

The spelling of 997345050 in words is "nine hundred ninety-seven million, three hundred forty-five thousand, fifty".