1399798 has 8 divisors (see below), whose sum is σ = 2106792. Its totient is φ = 697536.

The previous prime is 1399793. The next prime is 1399813. The reversal of 1399798 is 8979931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315 + ... + 1702.

It is an arithmetic number, because the mean of its divisors is an integer number (263349).

2^1399798 is an apocalyptic number.

1399798 is a deficient number, since it is larger than the sum of its proper divisors (706994).

1399798 is a wasteful number, since it uses less digits than its factorization.

1399798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366.

The product of its digits is 122472, while the sum is 46.

The square root of 1399798 is about 1183.1305929609. The cubic root of 1399798 is about 111.8635135882.

It can be divided in two parts, 1399 and 798, that added together give a cube (2197 = 13³).

The spelling of 1399798 in words is "one million, three hundred ninety-nine thousand, seven hundred ninety-eight".