1994523 has 8 divisors (see below), whose sum is σ = 2699328. Its totient is φ = 1309704.

The previous prime is 1994521. The next prime is 1994543. The reversal of 1994523 is 3254991.

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

It is not a de Polignac number, because 1994523 - 2¹ = 1994521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1994521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4761 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (337416).

2^1994523 is an apocalyptic number.

1994523 is a deficient number, since it is larger than the sum of its proper divisors (704805).

1994523 is an equidigital number, since it uses as much as digits as its factorization.

1994523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9993.

The product of its digits is 9720, while the sum is 33.

The square root of 1994523 is about 1412.2758229185. The cubic root of 1994523 is about 125.8769900515.

The spelling of 1994523 in words is "one million, nine hundred ninety-four thousand, five hundred twenty-three".