1389575627 has 4 divisors (see below), whose sum is σ = 1515900696. Its totient is φ = 1263250560.

The previous prime is 1389575609. The next prime is 1389575717. The reversal of 1389575627 is 7265759831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7265759831 = 11 ⋅660523621.

It is not a de Polignac number, because 1389575627 - 2¹⁰ = 1389574603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389575027) 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, 63162518 + ... + 63162539.

It is an arithmetic number, because the mean of its divisors is an integer number (378975174).

Almost surely, 2^1389575627 is an apocalyptic number.

1389575627 is a deficient number, since it is larger than the sum of its proper divisors (126325069).

1389575627 is a wasteful number, since it uses less digits than its factorization.

1389575627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126325068.

The product of its digits is 3175200, while the sum is 53.

The square root of 1389575627 is about 37277.0120449588. The cubic root of 1389575627 is about 1115.9054432182.

The spelling of 1389575627 in words is "one billion, three hundred eighty-nine million, five hundred seventy-five thousand, six hundred twenty-seven".