1399534 has 4 divisors (see below), whose sum is σ = 2099304. Its totient is φ = 699766.

The previous prime is 1399529. The next prime is 1399537. The reversal of 1399534 is 4359931.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 1399534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349882 + ... + 349885.

It is an arithmetic number, because the mean of its divisors is an integer number (524826).

2^1399534 is an apocalyptic number.

1399534 is a deficient number, since it is larger than the sum of its proper divisors (699770).

1399534 is an equidigital number, since it uses as much as digits as its factorization.

1399534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699769.

The product of its digits is 14580, while the sum is 34.

The square root of 1399534 is about 1183.0190192892. The cubic root of 1399534 is about 111.8564807106.

The spelling of 1399534 in words is "one million, three hundred ninety-nine thousand, five hundred thirty-four".