1679693 has 2 divisors, whose sum is σ = 1679694. Its totient is φ = 1679692.

The previous prime is 1679687. The next prime is 1679701. The reversal of 1679693 is 3969761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 635209 = 1022^2 + 797^2 .

It is a cyclic number.

It is not a de Polignac number, because 1679693 - 2¹⁴ = 1663309 is a prime.

It is a d-powerful number, because it can be written as 1 + 6 + 7² + 9 + 6⁸ + 9 + 3 .

It is a self number, because there is not a number n which added to its sum of digits gives 1679693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1679603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839846 + 839847.

It is an arithmetic number, because the mean of its divisors is an integer number (839847).

2^1679693 is an apocalyptic number.

It is an amenable number.

1679693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679693 is an equidigital number, since it uses as much as digits as its factorization.

1679693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 1679693 is about 1296.0297064497. The cubic root of 1679693 is about 118.8711974076.

It can be divided in two parts, 16796 and 93, that multiplied together give a triangular number (1562028 = T₁₇₆₇).

The spelling of 1679693 in words is "one million, six hundred seventy-nine thousand, six hundred ninety-three".