1994065 has 4 divisors (see below), whose sum is σ = 2392884. Its totient is φ = 1595248.

The previous prime is 1994059. The next prime is 1994081. The reversal of 1994065 is 5604991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 1008016 = 993^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1994065 - 2⁵ = 1994033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1994065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199402 + ... + 199411.

It is an arithmetic number, because the mean of its divisors is an integer number (598221).

2^1994065 is an apocalyptic number.

It is an amenable number.

1994065 is a deficient number, since it is larger than the sum of its proper divisors (398819).

1994065 is an equidigital number, since it uses as much as digits as its factorization.

1994065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398818.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1994065 is about 1412.1136639803. The cubic root of 1994065 is about 125.8673543183.

The spelling of 1994065 in words is "one million, nine hundred ninety-four thousand, sixty-five".