1679662 has 4 divisors (see below), whose sum is σ = 2519496. Its totient is φ = 839830.

The previous prime is 1679659. The next prime is 1679669. The reversal of 1679662 is 2669761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2669761 = 631 ⋅4231.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 419914 + ... + 419917.

It is an arithmetic number, because the mean of its divisors is an integer number (629874).

2^1679662 is an apocalyptic number.

1679662 is a deficient number, since it is larger than the sum of its proper divisors (839834).

1679662 is an equidigital number, since it uses as much as digits as its factorization.

1679662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839833.

The product of its digits is 27216, while the sum is 37.

The square root of 1679662 is about 1296.0177467921. The cubic root of 1679662 is about 118.8704661173.

Subtracting 1679662 from its reverse (2669761), we obtain a palindrome (990099).

The spelling of 1679662 in words is "one million, six hundred seventy-nine thousand, six hundred sixty-two".