1399211 has 8 divisors (see below), whose sum is σ = 1539648. Its totient is φ = 1261000.

The previous prime is 1399201. The next prime is 1399213. The reversal of 1399211 is 1129931.

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

It is a cyclic number.

It is not a de Polignac number, because 1399211 - 2¹⁴ = 1382827 is a prime.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1399213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (192456).

2^1399211 is an apocalyptic number.

1399211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1399211 is a deficient number, since it is larger than the sum of its proper divisors (140437).

1399211 is a wasteful number, since it uses less digits than its factorization.

1399211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113.

The product of its digits is 486, while the sum is 26.

The square root of 1399211 is about 1182.8824962776. The cubic root of 1399211 is about 111.8478748882.

The spelling of 1399211 in words is "one million, three hundred ninety-nine thousand, two hundred eleven".