1398856 has 16 divisors (see below), whose sum is σ = 2761200. Its totient is φ = 662544.

The previous prime is 1398847. The next prime is 1398863. The reversal of 1398856 is 6588931.

It is a happy 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, 4450 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (172575).

2^1398856 is an apocalyptic number.

It is an amenable number.

1398856 is a deficient number, since it is larger than the sum of its proper divisors (1362344).

1398856 is a wasteful number, since it uses less digits than its factorization.

1398856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228 (or 9224 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 1398856 is about 1182.7324295884. The cubic root of 1398856 is about 111.8384149487.

The spelling of 1398856 in words is "one million, three hundred ninety-eight thousand, eight hundred fifty-six".