1339429673 has 4 divisors (see below), whose sum is σ = 1341991248. Its totient is φ = 1336868100.

The previous prime is 1339429669. The next prime is 1339429691. The reversal of 1339429673 is 3769249331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3769249331 = 1741 ⋅2164991.

It is a cyclic number.

It is not a de Polignac number, because 1339429673 - 2² = 1339429669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339429573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280003 + ... + 1281048.

It is an arithmetic number, because the mean of its divisors is an integer number (335497812).

Almost surely, 2^1339429673 is an apocalyptic number.

It is an amenable number.

1339429673 is a deficient number, since it is larger than the sum of its proper divisors (2561575).

1339429673 is an equidigital number, since it uses as much as digits as its factorization.

1339429673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561574.

The product of its digits is 734832, while the sum is 47.

The square root of 1339429673 is about 36598.2195331959. The cubic root of 1339429673 is about 1102.3173386674.

The spelling of 1339429673 in words is "one billion, three hundred thirty-nine million, four hundred twenty-nine thousand, six hundred seventy-three".