1398023 has 8 divisors (see below), whose sum is σ = 1546896. Its totient is φ = 1252800.

The previous prime is 1398017. The next prime is 1398031. The reversal of 1398023 is 3208931.

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 1398023 - 2⁶ = 1397959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1397983 and 1398001.

It is a congruent number.

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, 68 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (193362).

2^1398023 is an apocalyptic number.

1398023 is a deficient number, since it is larger than the sum of its proper divisors (148873).

1398023 is a wasteful number, since it uses less digits than its factorization.

1398023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1398023 is about 1182.3802264923. The cubic root of 1398023 is about 111.8162111150.

The spelling of 1398023 in words is "one million, three hundred ninety-eight thousand, twenty-three".