997946848 has 48 divisors (see below), whose sum is σ = 1994872320. Its totient is φ = 491354496.

The previous prime is 997946821. The next prime is 997946849. The reversal of 997946848 is 848649799.

It is a super-2 number, since 2×997946848² = 1991795822866270208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 997946848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997946849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1611883 + ... + 1612501.

It is an arithmetic number, because the mean of its divisors is an integer number (41559840).

Almost surely, 2^997946848 is an apocalyptic number.

It is an amenable number.

997946848 is a deficient number, since it is larger than the sum of its proper divisors (996925472).

997946848 is a wasteful number, since it uses less digits than its factorization.

997946848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1311 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 64.

The square root of 997946848 is about 31590.2967380808. The cubic root of 997946848 is about 999.3151470836.

The spelling of 997946848 in words is "nine hundred ninety-seven million, nine hundred forty-six thousand, eight hundred forty-eight".