1393289793 has 12 divisors (see below), whose sum is σ = 2300034048. Its totient is φ = 796165560.

The previous prime is 1393289783. The next prime is 1393289809. The reversal of 1393289793 is 3979823931.

It is not a de Polignac number, because 1393289793 - 2²² = 1389095489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1393289783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11057793 + ... + 11057918.

It is an arithmetic number, because the mean of its divisors is an integer number (191669504).

Almost surely, 2^1393289793 is an apocalyptic number.

It is an amenable number.

1393289793 is a deficient number, since it is larger than the sum of its proper divisors (906744255).

1393289793 is a wasteful number, since it uses less digits than its factorization.

1393289793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22115724 (or 22115721 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 1393289793 is about 37326.7972507688. The cubic root of 1393289793 is about 1116.8987850530.

The spelling of 1393289793 in words is "one billion, three hundred ninety-three million, two hundred eighty-nine thousand, seven hundred ninety-three".