1679287 has 2 divisors, whose sum is σ = 1679288. Its totient is φ = 1679286.

The previous prime is 1679281. The next prime is 1679291. The reversal of 1679287 is 7829761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1679287 - 2⁷ = 1679159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1679281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839643 + 839644.

It is an arithmetic number, because the mean of its divisors is an integer number (839644).

2^1679287 is an apocalyptic number.

1679287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679287 is an equidigital number, since it uses as much as digits as its factorization.

1679287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 1679287 is about 1295.8730647714. The cubic root of 1679287 is about 118.8616191503.

The spelling of 1679287 in words is "one million, six hundred seventy-nine thousand, two hundred eighty-seven".