1298671 has 4 divisors (see below), whose sum is σ = 1416744. Its totient is φ = 1180600.

The previous prime is 1298653. The next prime is 1298699. The reversal of 1298671 is 1768921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1298671 - 2¹¹ = 1296623 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 (1298611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59020 + ... + 59041.

It is an arithmetic number, because the mean of its divisors is an integer number (354186).

2^1298671 is an apocalyptic number.

1298671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1298671 is a deficient number, since it is larger than the sum of its proper divisors (118073).

1298671 is a wasteful number, since it uses less digits than its factorization.

1298671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118072.

The product of its digits is 6048, while the sum is 34.

The square root of 1298671 is about 1139.5924710176. The cubic root of 1298671 is about 109.1020843139.

The spelling of 1298671 in words is "one million, two hundred ninety-eight thousand, six hundred seventy-one".