1679667 has 16 divisors (see below), whose sum is σ = 2550528. Its totient is φ = 973280.

The previous prime is 1679659. The next prime is 1679669. The reversal of 1679667 is 7669761.

It is not a de Polignac number, because 1679667 - 2³ = 1679659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1679669) 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, 348 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (159408).

2^1679667 is an apocalyptic number.

1679667 is a deficient number, since it is larger than the sum of its proper divisors (870861).

1679667 is a wasteful number, since it uses less digits than its factorization.

1679667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its digits is 95256, while the sum is 42.

The square root of 1679667 is about 1296.0196757766. The cubic root of 1679667 is about 118.8705840680.

It can be divided in two parts, 1679 and 667, that added together give a triangular number (2346 = T₆₈).

The spelling of 1679667 in words is "one million, six hundred seventy-nine thousand, six hundred sixty-seven".