1870798 has 4 divisors (see below), whose sum is σ = 2806200. Its totient is φ = 935398.

The previous prime is 1870793. The next prime is 1870807. The reversal of 1870798 is 8970781.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1870798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1870793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467698 + ... + 467701.

It is an arithmetic number, because the mean of its divisors is an integer number (701550).

2^1870798 is an apocalyptic number.

1870798 is a deficient number, since it is larger than the sum of its proper divisors (935402).

1870798 is an equidigital number, since it uses as much as digits as its factorization.

1870798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935401.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1870798 is about 1367.7711796934. The cubic root of 1870798 is about 123.2184190570.

The spelling of 1870798 in words is "one million, eight hundred seventy thousand, seven hundred ninety-eight".