997356928 has 16 divisors (see below), whose sum is σ = 1986922260. Its totient is φ = 498678400.

The previous prime is 997356917. The next prime is 997356929. The reversal of 997356928 is 829653799.

997356928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997356929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3895798 + ... + 3896053.

Almost surely, 2^997356928 is an apocalyptic number.

It is an amenable number.

997356928 is a deficient number, since it is larger than the sum of its proper divisors (989565332).

997356928 is an equidigital number, since it uses as much as digits as its factorization.

997356928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7791865 (or 7791853 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 58.

The square root of 997356928 is about 31580.9583135154. The cubic root of 997356928 is about 999.1181986549.

The spelling of 997356928 in words is "nine hundred ninety-seven million, three hundred fifty-six thousand, nine hundred twenty-eight".