1399499683 has 4 divisors (see below), whose sum is σ = 1429276320. Its totient is φ = 1369723048.

The previous prime is 1399499659. The next prime is 1399499693. The reversal of 1399499683 is 3869949931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3869949931 = 35107 ⋅110233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1399499683 is a prime.

It is a super-4 number, since 4×1399499683⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1399499693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14888248 + ... + 14888341.

It is an arithmetic number, because the mean of its divisors is an integer number (357319080).

Almost surely, 2^1399499683 is an apocalyptic number.

1399499683 is a deficient number, since it is larger than the sum of its proper divisors (29776637).

1399499683 is an equidigital number, since it uses as much as digits as its factorization.

1399499683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29776636.

The product of its digits is 11337408, while the sum is 61.

The square root of 1399499683 is about 37409.8875031722. The cubic root of 1399499683 is about 1118.5556645143. Note that the first 3 decimals are identical.

The spelling of 1399499683 in words is "one billion, three hundred ninety-nine million, four hundred ninety-nine thousand, six hundred eighty-three".