1399879714 has 4 divisors (see below), whose sum is σ = 2099819574. Its totient is φ = 699939856.

The previous prime is 1399879673. The next prime is 1399879721. The reversal of 1399879714 is 4179789931.

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

It can be written as a sum of positive squares in only one way, i.e., 1396143225 + 3736489 = 37365^2 + 1933^2 .

It is an unprimeable number.

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, 349969927 + ... + 349969930.

Almost surely, 2^1399879714 is an apocalyptic number.

1399879714 is a deficient number, since it is larger than the sum of its proper divisors (699939860).

1399879714 is an equidigital number, since it uses as much as digits as its factorization.

1399879714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699939859.

The product of its digits is 3429216, while the sum is 58.

The square root of 1399879714 is about 37414.9664439245. The cubic root of 1399879714 is about 1118.6569024452.

The spelling of 1399879714 in words is "one billion, three hundred ninety-nine million, eight hundred seventy-nine thousand, seven hundred fourteen".