997729068 has 24 divisors (see below), whose sum is σ = 2660611072. Its totient is φ = 285065424.

The previous prime is 997729063. The next prime is 997729069. The reversal of 997729068 is 860927799.

997729068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 997728999 and 997729017.

It is not an unprimeable number, because it can be changed into a prime (997729063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5938780 + ... + 5938947.

Almost surely, 2^997729068 is an apocalyptic number.

It is an amenable number.

997729068 is an abundant number, since it is smaller than the sum of its proper divisors (1662882004).

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

997729068 is a wasteful number, since it uses less digits than its factorization.

997729068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877741 (or 11877739 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 57.

The square root of 997729068 is about 31586.8496054925. The cubic root of 997729068 is about 999.2424489280.

The spelling of 997729068 in words is "nine hundred ninety-seven million, seven hundred twenty-nine thousand, sixty-eight".