387647922 has 8 divisors (see below), whose sum is σ = 775295856. Its totient is φ = 129215972.

The previous prime is 387647921. The next prime is 387647933. The reversal of 387647922 is 229746783.

It is a sphenic number, since it is the product of 3 distinct primes.

387647922 is an admirable number.

It is a super-2 number, since 2×387647922² = 300541822861836168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (387647921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32303988 + ... + 32303999.

It is an arithmetic number, because the mean of its divisors is an integer number (96911982).

Almost surely, 2^387647922 is an apocalyptic number.

387647922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387647922 is a wasteful number, since it uses less digits than its factorization.

387647922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64607992.

The product of its digits is 1016064, while the sum is 48.

The square root of 387647922 is about 19688.7765490901. The cubic root of 387647922 is about 729.1426238661.

The spelling of 387647922 in words is "three hundred eighty-seven million, six hundred forty-seven thousand, nine hundred twenty-two".