1389088823 has 8 divisors (see below), whose sum is σ = 1410864000. Its totient is φ = 1367344440.

The previous prime is 1389088783. The next prime is 1389088829. The reversal of 1389088823 is 3288809831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1389088823 - 2⁶ = 1389088759 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 (1389088829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93518 + ... + 107348.

It is an arithmetic number, because the mean of its divisors is an integer number (176358000).

Almost surely, 2^1389088823 is an apocalyptic number.

1389088823 is a deficient number, since it is larger than the sum of its proper divisors (21775177).

1389088823 is a wasteful number, since it uses less digits than its factorization.

1389088823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15397.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 1389088823 is about 37270.4819260497. The cubic root of 1389088823 is about 1115.7751178943.

The spelling of 1389088823 in words is "one billion, three hundred eighty-nine million, eighty-eight thousand, eight hundred twenty-three".