1797198 has 16 divisors (see below), whose sum is σ = 3871056. Its totient is φ = 552960.

The previous prime is 1797193. The next prime is 1797203. The reversal of 1797198 is 8917971.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1797193) and next prime (1797203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11443 + ... + 11598.

It is an arithmetic number, because the mean of its divisors is an integer number (241941).

2^1797198 is an apocalyptic number.

1797198 is an abundant number, since it is smaller than the sum of its proper divisors (2073858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1797198 is a wasteful number, since it uses less digits than its factorization.

1797198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23059.

The product of its digits is 31752, while the sum is 42.

The square root of 1797198 is about 1340.5961360529. The cubic root of 1797198 is about 121.5808873903.

The spelling of 1797198 in words is "one million, seven hundred ninety-seven thousand, one hundred ninety-eight".