382621665 has 16 divisors (see below), whose sum is σ = 612724608. Its totient is φ = 203888256.

The previous prime is 382621637. The next prime is 382621691. The reversal of 382621665 is 566126283.

It is not a de Polignac number, because 382621665 - 2⁹ = 382621153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7917 + ... + 28773.

It is an arithmetic number, because the mean of its divisors is an integer number (38295288).

Almost surely, 2^382621665 is an apocalyptic number.

It is an amenable number.

382621665 is a deficient number, since it is larger than the sum of its proper divisors (230102943).

382621665 is a wasteful number, since it uses less digits than its factorization.

382621665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22088.

The product of its digits is 103680, while the sum is 39.

The square root of 382621665 is about 19560.7173948196. The cubic root of 382621665 is about 725.9775414434.

The spelling of 382621665 in words is "three hundred eighty-two million, six hundred twenty-one thousand, six hundred sixty-five".