387682715 has 8 divisors (see below), whose sum is σ = 531679200. Its totient is φ = 265839552.

The previous prime is 387682709. The next prime is 387682717. The reversal of 387682715 is 517286783.

It is a happy number.

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 387682715 - 2⁴ = 387682699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387682715.

It is not an unprimeable number, because it can be changed into a prime (387682717) 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, 5538290 + ... + 5538359.

It is an arithmetic number, because the mean of its divisors is an integer number (66459900).

Almost surely, 2^387682715 is an apocalyptic number.

387682715 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

387682715 is a deficient number, since it is larger than the sum of its proper divisors (143996485).

387682715 is a wasteful number, since it uses less digits than its factorization.

387682715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076661.

The product of its digits is 564480, while the sum is 47.

The square root of 387682715 is about 19689.6601037194. The cubic root of 387682715 is about 729.1644377329.

The spelling of 387682715 in words is "three hundred eighty-seven million, six hundred eighty-two thousand, seven hundred fifteen".