1298806 has 4 divisors (see below), whose sum is σ = 1948212. Its totient is φ = 649402.

The previous prime is 1298797. The next prime is 1298809. The reversal of 1298806 is 6088921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6088921 = 773 ⋅7877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324700 + ... + 324703.

It is an arithmetic number, because the mean of its divisors is an integer number (487053).

2^1298806 is an apocalyptic number.

1298806 is a deficient number, since it is larger than the sum of its proper divisors (649406).

1298806 is an equidigital number, since it uses as much as digits as its factorization.

1298806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649405.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1298806 is about 1139.6517011789. The cubic root of 1298806 is about 109.1058646584.

The spelling of 1298806 in words is "one million, two hundred ninety-eight thousand, eight hundred six".