1798089 has 16 divisors (see below), whose sum is σ = 2502528. Its totient is φ = 1147392.

The previous prime is 1798081. The next prime is 1798109. The reversal of 1798089 is 9808971.

1798089 = T₁₄₂ + T₁₄₃ + ... + T₂₃₈.

It is not a de Polignac number, because 1798089 - 2³ = 1798081 is a prime.

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 1798089.

It is not an unprimeable number, because it can be changed into a prime (1798081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684 + ... + 10850.

It is an arithmetic number, because the mean of its divisors is an integer number (156408).

2^1798089 is an apocalyptic number.

It is an amenable number.

1798089 is a deficient number, since it is larger than the sum of its proper divisors (704439).

1798089 is a wasteful number, since it uses less digits than its factorization.

1798089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 1798089 is about 1340.9284097222. The cubic root of 1798089 is about 121.6009761940.

The spelling of 1798089 in words is "one million, seven hundred ninety-eight thousand, eighty-nine".