997698 has 16 divisors (see below), whose sum is σ = 2149056. Its totient is φ = 306960.

The previous prime is 997693. The next prime is 997699. The reversal of 997698 is 896799.

It is a happy number.

997698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (997693) 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, 6318 + ... + 6473.

It is an arithmetic number, because the mean of its divisors is an integer number (134316).

2⁹⁹⁷⁶⁹⁸ is an apocalyptic number.

997698 is an abundant number, since it is smaller than the sum of its proper divisors (1151358).

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

997698 is a wasteful number, since it uses less digits than its factorization.

997698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12809.

The product of its digits is 244944, while the sum is 48.

The square root of 997698 is about 998.8483368360. The cubic root of 997698 is about 99.9232077112.

The spelling of 997698 in words is "nine hundred ninety-seven thousand, six hundred ninety-eight".