1398872 has 8 divisors (see below), whose sum is σ = 2622900. Its totient is φ = 699432.

The previous prime is 1398871. The next prime is 1398911. The reversal of 1398872 is 2788931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87422 + ... + 87437.

2^1398872 is an apocalyptic number.

It is an amenable number.

1398872 is a deficient number, since it is larger than the sum of its proper divisors (1224028).

1398872 is a wasteful number, since it uses less digits than its factorization.

1398872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174865 (or 174861 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 1398872 is about 1182.7391935672. The cubic root of 1398872 is about 111.8388413466.

The spelling of 1398872 in words is "one million, three hundred ninety-eight thousand, eight hundred seventy-two".