1797898 has 8 divisors (see below), whose sum is σ = 2702592. Its totient is φ = 897036.

The previous prime is 1797893. The next prime is 1797911. The reversal of 1797898 is 8987971.

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

It is not an unprimeable number, because it can be changed into a prime (1797893) 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, 1111 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (337824).

2^1797898 is an apocalyptic number.

1797898 is a deficient number, since it is larger than the sum of its proper divisors (904694).

1797898 is a wasteful number, since it uses less digits than its factorization.

1797898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its digits is 254016, while the sum is 49.

The square root of 1797898 is about 1340.8571885179. The cubic root of 1797898 is about 121.5966703988.

It can be divided in two parts, 1797 and 898, that multiplied together give a triangular number (1613706 = T₁₇₉₆).

The spelling of 1797898 in words is "one million, seven hundred ninety-seven thousand, eight hundred ninety-eight".