1392679903 has 4 divisors (see below), whose sum is σ = 1392844248. Its totient is φ = 1392515560.

The previous prime is 1392679807. The next prime is 1392679907. The reversal of 1392679903 is 3099762931.

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

It is a cyclic number.

It is not a de Polignac number, because 1392679903 - 2¹⁷ = 1392548831 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392679907) 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, 68728 + ... + 86653.

It is an arithmetic number, because the mean of its divisors is an integer number (348211062).

Almost surely, 2^1392679903 is an apocalyptic number.

1392679903 is a deficient number, since it is larger than the sum of its proper divisors (164345).

1392679903 is an equidigital number, since it uses as much as digits as its factorization.

1392679903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164344.

The product of its (nonzero) digits is 551124, while the sum is 49.

The square root of 1392679903 is about 37318.6267566211. The cubic root of 1392679903 is about 1116.7357931613.

The spelling of 1392679903 in words is "one billion, three hundred ninety-two million, six hundred seventy-nine thousand, nine hundred three".