1679967 has 16 divisors (see below), whose sum is σ = 2548480. Its totient is φ = 1093176.

The previous prime is 1679963. The next prime is 1679981. The reversal of 1679967 is 7699761.

It is not a de Polignac number, because 1679967 - 2² = 1679963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1679963) 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, 438 + ... + 1884.

It is an arithmetic number, because the mean of its divisors is an integer number (159280).

2^1679967 is an apocalyptic number.

1679967 is a deficient number, since it is larger than the sum of its proper divisors (868513).

1679967 is a wasteful number, since it uses less digits than its factorization.

1679967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1493 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 1679967 is about 1296.1354095927. The cubic root of 1679967 is about 118.8776606794.

The spelling of 1679967 in words is "one million, six hundred seventy-nine thousand, nine hundred sixty-seven".