1994503711 has 8 divisors (see below), whose sum is σ = 2000273184. Its totient is φ = 1988743680.

The previous prime is 1994503669. The next prime is 1994503723. The reversal of 1994503711 is 1173054991.

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 1994503711 - 2²⁷ = 1860285983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994503781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654351 + ... + 657391.

It is an arithmetic number, because the mean of its divisors is an integer number (250034148).

Almost surely, 2^1994503711 is an apocalyptic number.

1994503711 is a deficient number, since it is larger than the sum of its proper divisors (5769473).

1994503711 is a wasteful number, since it uses less digits than its factorization.

1994503711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 1994503711 is about 44659.8668941142. The cubic root of 1994503711 is about 1258.7658426544.

The spelling of 1994503711 in words is "one billion, nine hundred ninety-four million, five hundred three thousand, seven hundred eleven".