997334586 has 64 divisors (see below), whose sum is σ = 2365977600. Its totient is φ = 310489200.

The previous prime is 997334539. The next prime is 997334587. The reversal of 997334586 is 685433799.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (997334587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66001 + ... + 79691.

It is an arithmetic number, because the mean of its divisors is an integer number (36968400).

Almost surely, 2^997334586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997334586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182988800).

997334586 is an abundant number, since it is smaller than the sum of its proper divisors (1368643014).

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

997334586 is a wasteful number, since it uses less digits than its factorization.

997334586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792 (or 13786 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 997334586 is about 31580.6045857263. The cubic root of 997334586 is about 999.1107381144.

The spelling of 997334586 in words is "nine hundred ninety-seven million, three hundred thirty-four thousand, five hundred eighty-six".