1399651703 has 16 divisors (see below), whose sum is σ = 1443728160. Its totient is φ = 1356466176.

The previous prime is 1399651697. The next prime is 1399651711. The reversal of 1399651703 is 3071569931.

It is a cyclic number.

It is not a de Polignac number, because 1399651703 - 2⁶ = 1399651639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399651723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1111088 + ... + 1112346.

It is an arithmetic number, because the mean of its divisors is an integer number (90233010).

Almost surely, 2^1399651703 is an apocalyptic number.

1399651703 is a deficient number, since it is larger than the sum of its proper divisors (44076457).

1399651703 is a wasteful number, since it uses less digits than its factorization.

With its successor (1399651704) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1586).

1399651703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 1399651703 is about 37411.9192637854. The cubic root of 1399651703 is about 1118.5961639103.

The spelling of 1399651703 in words is "one billion, three hundred ninety-nine million, six hundred fifty-one thousand, seven hundred three".