1798365 has 8 divisors (see below), whose sum is σ = 2877408. Its totient is φ = 959120.

The previous prime is 1798351. The next prime is 1798367. The reversal of 1798365 is 5638971.

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

It is not a de Polignac number, because 1798365 - 2⁵ = 1798333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59931 + ... + 59960.

It is an arithmetic number, because the mean of its divisors is an integer number (359676).

2^1798365 is an apocalyptic number.

1798365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1798365 is a deficient number, since it is larger than the sum of its proper divisors (1079043).

1798365 is a wasteful number, since it uses less digits than its factorization.

1798365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119899.

The product of its digits is 45360, while the sum is 39.

The square root of 1798365 is about 1341.0313195448. The cubic root of 1798365 is about 121.6071976421.

Subtracting 1798365 from its reverse (5638971), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1798365 in words is "one million, seven hundred ninety-eight thousand, three hundred sixty-five".