1628123 has 12 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 1379952.

The previous prime is 1628117. The next prime is 1628131. The reversal of 1628123 is 3218261.

It is not a de Polignac number, because 1628123 - 2⁶ = 1628059 is a prime.

It is a d-powerful number, because it can be written as 1 + 6 + 2⁹ + 8³ + 1 + 2¹⁵ + 3¹³ .

It is not an unprimeable number, because it can be changed into a prime (1628153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7190 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (159600).

2^1628123 is an apocalyptic number.

1628123 is a deficient number, since it is larger than the sum of its proper divisors (287077).

1628123 is a wasteful number, since it uses less digits than its factorization.

1628123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 379 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1628123 is about 1275.9792318059. The cubic root of 1628123 is about 117.6420012483.

The spelling of 1628123 in words is "one million, six hundred twenty-eight thousand, one hundred twenty-three".