1603373 has 4 divisors (see below), whose sum is σ = 1610268. Its totient is φ = 1596480.

The previous prime is 1603363. The next prime is 1603397. The reversal of 1603373 is 3733061.

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 515524 + 1087849 = 718^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1603373 - 2¹⁴ = 1586989 is a prime.

It is a d-powerful number, because it can be written as 1 + 6 + 0 + 3⁴ + 3⁸ + 7⁴ + 3¹³ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086 + ... + 3567.

It is an arithmetic number, because the mean of its divisors is an integer number (402567).

2^1603373 is an apocalyptic number.

It is an amenable number.

1603373 is a deficient number, since it is larger than the sum of its proper divisors (6895).

1603373 is an equidigital number, since it uses as much as digits as its factorization.

1603373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6894.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 1603373 is about 1266.2436574372. The cubic root of 1603373 is about 117.0428411062.

The spelling of 1603373 in words is "one million, six hundred three thousand, three hundred seventy-three".