1299966 has 8 divisors (see below), whose sum is σ = 2599944. Its totient is φ = 433320.

The previous prime is 1299953. The next prime is 1299979. The reversal of 1299966 is 6699921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1299953) and next prime (1299979).

It is a sphenic number, since it is the product of 3 distinct primes.

1299966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108325 + ... + 108336.

It is an arithmetic number, because the mean of its divisors is an integer number (324993).

2^1299966 is an apocalyptic number.

1299966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1299966 is a wasteful number, since it uses less digits than its factorization.

1299966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216666.

The product of its digits is 52488, while the sum is 42.

The square root of 1299966 is about 1140.1605150153. The cubic root of 1299966 is about 109.1383368271.

The spelling of 1299966 in words is "one million, two hundred ninety-nine thousand, nine hundred sixty-six".