1299398 has 8 divisors (see below), whose sum is σ = 1978392. Its totient is φ = 639936.

The previous prime is 1299379. The next prime is 1299437. The reversal of 1299398 is 8939921.

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

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, 4715 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (247299).

2^1299398 is an apocalyptic number.

1299398 is a deficient number, since it is larger than the sum of its proper divisors (678994).

1299398 is an equidigital number, since it uses as much as digits as its factorization.

1299398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9766.

The product of its digits is 34992, while the sum is 41.

The square root of 1299398 is about 1139.9114000658. The cubic root of 1299398 is about 109.1224390764.

The spelling of 1299398 in words is "one million, two hundred ninety-nine thousand, three hundred ninety-eight".