1798955 has 8 divisors (see below), whose sum is σ = 2176512. Its totient is φ = 1427328.

The previous prime is 1798943. The next prime is 1798963. The reversal of 1798955 is 5598971.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1798955 - 2⁶ = 1798891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 782 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (272064).

2^1798955 is an apocalyptic number.

1798955 is a deficient number, since it is larger than the sum of its proper divisors (377557).

1798955 is a wasteful number, since it uses less digits than its factorization.

1798955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965.

The product of its digits is 113400, while the sum is 44.

The square root of 1798955 is about 1341.2512814533. The cubic root of 1798955 is about 121.6204949801.

It can be divided in two parts, 179 and 8955, that multiplied together give a triangular number (1602945 = T₁₇₉₀).

The spelling of 1798955 in words is "one million, seven hundred ninety-eight thousand, nine hundred fifty-five".