1373603 has 8 divisors (see below), whose sum is σ = 1712640. Its totient is φ = 1070280.

The previous prime is 1373591. The next prime is 1373611. The reversal of 1373603 is 3063731.

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 1373603 - 2⁶ = 1373539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373683) 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, 8843 + ... + 8996.

It is an arithmetic number, because the mean of its divisors is an integer number (214080).

2^1373603 is an apocalyptic number.

1373603 is a deficient number, since it is larger than the sum of its proper divisors (339037).

1373603 is a wasteful number, since it uses less digits than its factorization.

1373603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17857.

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

The square root of 1373603 is about 1172.0081057740. The cubic root of 1373603 is about 111.1613323711.

The spelling of 1373603 in words is "one million, three hundred seventy-three thousand, six hundred three".