387953117 has 8 divisors (see below), whose sum is σ = 389971200. Its totient is φ = 385941024.

The previous prime is 387953113. The next prime is 387953119. The reversal of 387953117 is 711359783.

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 387953117 - 2² = 387953113 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 (387953113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180473 + ... + 182609.

It is an arithmetic number, because the mean of its divisors is an integer number (48746400).

Almost surely, 2^387953117 is an apocalyptic number.

It is an amenable number.

387953117 is a deficient number, since it is larger than the sum of its proper divisors (2018083).

387953117 is a wasteful number, since it uses less digits than its factorization.

387953117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995.

The product of its digits is 158760, while the sum is 44.

The square root of 387953117 is about 19696.5255057840. The cubic root of 387953117 is about 729.3339248694. Note that the first 3 decimals are identical.

The spelling of 387953117 in words is "three hundred eighty-seven million, nine hundred fifty-three thousand, one hundred seventeen".