1698665968 has 20 divisors (see below), whose sum is σ = 3464385160. Its totient is φ = 804631104.

The previous prime is 1698665951. The next prime is 1698665999. The reversal of 1698665968 is 8695668961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793555 + ... + 2794162.

It is an arithmetic number, because the mean of its divisors is an integer number (173219258).

Almost surely, 2^1698665968 is an apocalyptic number.

It is an amenable number.

1698665968 is an abundant number, since it is smaller than the sum of its proper divisors (1765719192).

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

1698665968 is a wasteful number, since it uses less digits than its factorization.

1698665968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587744 (or 5587738 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 64.

The square root of 1698665968 is about 41214.8755669600. The cubic root of 1698665968 is about 1193.1709249830.

The spelling of 1698665968 in words is "one billion, six hundred ninety-eight million, six hundred sixty-five thousand, nine hundred sixty-eight".