1385810087 has 8 divisors (see below), whose sum is σ = 1489785600. Its totient is φ = 1284938424.

The previous prime is 1385810071. The next prime is 1385810117. The reversal of 1385810087 is 7800185831.

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 1385810087 - 2⁴ = 1385810071 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 (1385810047) 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, 775037 + ... + 776822.

It is an arithmetic number, because the mean of its divisors is an integer number (186223200).

Almost surely, 2^1385810087 is an apocalyptic number.

1385810087 is a deficient number, since it is larger than the sum of its proper divisors (103975513).

1385810087 is a wasteful number, since it uses less digits than its factorization.

1385810087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551925.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 1385810087 is about 37226.4702463180. The cubic root of 1385810087 is about 1114.8965529719.

The spelling of 1385810087 in words is "one billion, three hundred eighty-five million, eight hundred ten thousand, eighty-seven".