1679445 has 12 divisors (see below), whose sum is σ = 2911116. Its totient is φ = 895680.

The previous prime is 1679443. The next prime is 1679459. The reversal of 1679445 is 5449761.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 651249 = 1014^2 + 807^2 .

It is not a de Polignac number, because 1679445 - 2¹ = 1679443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679443) 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, 18616 + ... + 18705.

It is an arithmetic number, because the mean of its divisors is an integer number (242593).

2^1679445 is an apocalyptic number.

1679445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1679445 is a deficient number, since it is larger than the sum of its proper divisors (1231671).

1679445 is a wasteful number, since it uses less digits than its factorization.

1679445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37332 (or 37329 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1679445 is about 1295.9340260986. The cubic root of 1679445 is about 118.8653468330.

The spelling of 1679445 in words is "one million, six hundred seventy-nine thousand, four hundred forty-five".