897727798 has 24 divisors (see below), whose sum is σ = 1481684904. Its totient is φ = 407631840.

The previous prime is 897727771. The next prime is 897727811.

It is a happy number.

897727798 is nontrivially palindromic in base 10.

897727798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415890 + ... + 418042.

It is an arithmetic number, because the mean of its divisors is an integer number (61736871).

Almost surely, 2^897727798 is an apocalyptic number.

897727798 is a deficient number, since it is larger than the sum of its proper divisors (583957106).

897727798 is a wasteful number, since it uses less digits than its factorization.

897727798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900 (or 3889 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 64.

The square root of 897727798 is about 29962.1060341225. The cubic root of 897727798 is about 964.6761861983.

The spelling of 897727798 in words is "eight hundred ninety-seven million, seven hundred twenty-seven thousand, seven hundred ninety-eight".