1398003 has 8 divisors (see below), whose sum is σ = 1928400. Its totient is φ = 899808.

The previous prime is 1397999. The next prime is 1398011. The reversal of 1398003 is 3008931.

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

It is not a de Polignac number, because 1398003 - 2² = 1397999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398043) 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, 7948 + ... + 8121.

It is an arithmetic number, because the mean of its divisors is an integer number (241050).

2^1398003 is an apocalyptic number.

1398003 is a deficient number, since it is larger than the sum of its proper divisors (530397).

1398003 is a wasteful number, since it uses less digits than its factorization.

1398003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1398003 is about 1182.3717689458. The cubic root of 1398003 is about 111.8156779014.

The spelling of 1398003 in words is "one million, three hundred ninety-eight thousand, three".