1994603 has 8 divisors (see below), whose sum is σ = 2179296. Its totient is φ = 1814400.

The previous prime is 1994599. The next prime is 1994621. The reversal of 1994603 is 3064991.

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 1994603 - 2² = 1994599 is a prime.

It is a super-2 number, since 2×1994603² = 7956882255218, which contains 22 as substring.

It is an Ulam number.

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 1994603.

It is not an unprimeable number, because it can be changed into a prime (1994623) 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, 158 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (272412).

2^1994603 is an apocalyptic number.

1994603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1994603 is a deficient number, since it is larger than the sum of its proper divisors (184693).

1994603 is a wasteful number, since it uses less digits than its factorization.

1994603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1994603 is about 1412.3041457137. The cubic root of 1994603 is about 125.8786729977.

The spelling of 1994603 in words is "one million, nine hundred ninety-four thousand, six hundred three".