1398802 has 4 divisors (see below), whose sum is σ = 2098206. Its totient is φ = 699400.

The previous prime is 1398781. The next prime is 1398841. The reversal of 1398802 is 2088931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2088931 = 13 ⋅160687.

It can be written as a sum of positive squares in only one way, i.e., 1229881 + 168921 = 1109^2 + 411^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349699 + ... + 349702.

2^1398802 is an apocalyptic number.

1398802 is a deficient number, since it is larger than the sum of its proper divisors (699404).

1398802 is an equidigital number, since it uses as much as digits as its factorization.

1398802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699403.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1398802 is about 1182.7096008742. The cubic root of 1398802 is about 111.8369758318.

The spelling of 1398802 in words is "one million, three hundred ninety-eight thousand, eight hundred two".