1389372593 has 16 divisors (see below), whose sum is σ = 1632436224. Its totient is φ = 1157792400.

The previous prime is 1389372559. The next prime is 1389372671. The reversal of 1389372593 is 3952739831.

It is a cyclic number.

It is not a de Polignac number, because 1389372593 - 2⁶ = 1389372529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389272593) 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, 35696 + ... + 63662.

It is an arithmetic number, because the mean of its divisors is an integer number (102027264).

Almost surely, 2^1389372593 is an apocalyptic number.

It is an amenable number.

1389372593 is a deficient number, since it is larger than the sum of its proper divisors (243063631).

1389372593 is a wasteful number, since it uses less digits than its factorization.

1389372593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28172.

The product of its digits is 1224720, while the sum is 50.

The square root of 1389372593 is about 37274.2886317097. The cubic root of 1389372593 is about 1115.8510914250.

The spelling of 1389372593 in words is "one billion, three hundred eighty-nine million, three hundred seventy-two thousand, five hundred ninety-three".