1389630535 has 8 divisors (see below), whose sum is σ = 1671845760. Its totient is φ = 1108845024.

The previous prime is 1389630511. The next prime is 1389630551. The reversal of 1389630535 is 5350369831.

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 1389630535 - 2⁹ = 1389630023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1389630491 and 1389630500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355287 + ... + 359176.

It is an arithmetic number, because the mean of its divisors is an integer number (208980720).

Almost surely, 2^1389630535 is an apocalyptic number.

1389630535 is a deficient number, since it is larger than the sum of its proper divisors (282215225).

1389630535 is an equidigital number, since it uses as much as digits as its factorization.

1389630535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714857.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 1389630535 is about 37277.7485237507. The cubic root of 1389630535 is about 1115.9201410698.

The spelling of 1389630535 in words is "one billion, three hundred eighty-nine million, six hundred thirty thousand, five hundred thirty-five".