997723716 has 96 divisors (see below), whose sum is σ = 2735824896. Its totient is φ = 279840000.

The previous prime is 997723703. The next prime is 997723823. The reversal of 997723716 is 617327799.

It is a super-2 number, since 2×997723716² = 1990905226937697312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88816 + ... + 99416.

It is an arithmetic number, because the mean of its divisors is an integer number (28498176).

Almost surely, 2^997723716 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 997723716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367912448).

997723716 is an abundant number, since it is smaller than the sum of its proper divisors (1738101180).

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

997723716 is a wasteful number, since it uses less digits than its factorization.

997723716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673 (or 10671 counting only the distinct ones).

The product of its digits is 1000188, while the sum is 51.

The square root of 997723716 is about 31586.7648865787. The cubic root of 997723716 is about 999.2406622187.

The spelling of 997723716 in words is "nine hundred ninety-seven million, seven hundred twenty-three thousand, seven hundred sixteen".