997954496 has 112 divisors (see below), whose sum is σ = 2554467840. Its totient is φ = 375352320.

The previous prime is 997954493. The next prime is 997954501. The reversal of 997954496 is 694459799.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×997954496² = 1991826352173228032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997954493) 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 15 ways as a sum of consecutive naturals, for example, 139421 + ... + 146403.

Almost surely, 2^997954496 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 997954496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277233920).

997954496 is an abundant number, since it is smaller than the sum of its proper divisors (1556513344).

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

997954496 is a wasteful number, since it uses less digits than its factorization.

997954496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042 (or 7032 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 62.

The square root of 997954496 is about 31590.4177876773. The cubic root of 997954496 is about 999.3176999058.

The spelling of 997954496 in words is "nine hundred ninety-seven million, nine hundred fifty-four thousand, four hundred ninety-six".