1239398 has 8 divisors (see below), whose sum is σ = 1889760. Its totient is φ = 609480.

The previous prime is 1239397. The next prime is 1239421. The reversal of 1239398 is 8939321.

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

It is a super-2 number, since 2×1239398² = 3072214804808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4958 + ... + 5201.

It is an arithmetic number, because the mean of its divisors is an integer number (236220).

2^1239398 is an apocalyptic number.

1239398 is a deficient number, since it is larger than the sum of its proper divisors (650362).

1239398 is a wasteful number, since it uses less digits than its factorization.

1239398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222.

The product of its digits is 11664, while the sum is 35.

The square root of 1239398 is about 1113.2825337712. The cubic root of 1239398 is about 107.4163185073.

The spelling of 1239398 in words is "one million, two hundred thirty-nine thousand, three hundred ninety-eight".