1679923 has 16 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 1282176.

The previous prime is 1679917. The next prime is 1679939. The reversal of 1679923 is 3299761.

It is not a de Polignac number, because 1679923 - 2¹³ = 1671731 is a prime.

It is a d-powerful number, because it can be written as 1 + 6⁸ + 7 + 9 + 9² + 2⁷ + 3⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890 + ... + 2632.

It is an arithmetic number, because the mean of its divisors is an integer number (133920).

2^1679923 is an apocalyptic number.

1679923 is a deficient number, since it is larger than the sum of its proper divisors (462797).

1679923 is a wasteful number, since it uses less digits than its factorization.

1679923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 20412, while the sum is 37.

The square root of 1679923 is about 1296.1184359463. The cubic root of 1679923 is about 118.8766228291.

The spelling of 1679923 in words is "one million, six hundred seventy-nine thousand, nine hundred twenty-three".