1679105 has 4 divisors (see below), whose sum is σ = 2014932. Its totient is φ = 1343280.

The previous prime is 1679101. The next prime is 1679113. The reversal of 1679105 is 5019761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5019761 = 157 ⋅31973.

It can be written as a sum of positive squares in 2 ways, for example, as 361201 + 1317904 = 601^2 + 1148^2 .

It is not a de Polignac number, because 1679105 - 2² = 1679101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167906 + ... + 167915.

It is an arithmetic number, because the mean of its divisors is an integer number (503733).

2^1679105 is an apocalyptic number.

It is an amenable number.

1679105 is a deficient number, since it is larger than the sum of its proper divisors (335827).

1679105 is an equidigital number, since it uses as much as digits as its factorization.

1679105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335826.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1679105 is about 1295.8028399413. The cubic root of 1679105 is about 118.8573249477.

The spelling of 1679105 in words is "one million, six hundred seventy-nine thousand, one hundred five".