1398712 has 16 divisors (see below), whose sum is σ = 2997360. Its totient is φ = 599424.

The previous prime is 1398707. The next prime is 1398721. The reversal of 1398712 is 2178931.

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, 12433 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (187335).

2^1398712 is an apocalyptic number.

It is an amenable number.

1398712 is an abundant number, since it is smaller than the sum of its proper divisors (1598648).

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

1398712 is a wasteful number, since it uses less digits than its factorization.

1398712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990 (or 24986 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1398712 is about 1182.6715520380. The cubic root of 1398712 is about 111.8345772212.

The spelling of 1398712 in words is "one million, three hundred ninety-eight thousand, seven hundred twelve".