1998095 has 16 divisors (see below), whose sum is σ = 2770848. Its totient is φ = 1367040.

The previous prime is 1998089. The next prime is 1998107. The reversal of 1998095 is 5908991.

It is not a de Polignac number, because 1998095 - 2¹⁴ = 1981711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (173178).

2^1998095 is an apocalyptic number.

1998095 is a deficient number, since it is larger than the sum of its proper divisors (772753).

1998095 is a wasteful number, since it uses less digits than its factorization.

1998095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 1998095 is about 1413.5398827058. The cubic root of 1998095 is about 125.9520897886.

The spelling of 1998095 in words is "one million, nine hundred ninety-eight thousand, ninety-five".