387664593 has 8 divisors (see below), whose sum is σ = 517025568. Its totient is φ = 258373344.

The previous prime is 387664591. The next prime is 387664637. The reversal of 387664593 is 395466783.

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

It is not a de Polignac number, because 387664593 - 2¹ = 387664591 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (387664591) 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, 2671 + ... + 27972.

It is an arithmetic number, because the mean of its divisors is an integer number (64628196).

Almost surely, 2^387664593 is an apocalyptic number.

It is an amenable number.

387664593 is a deficient number, since it is larger than the sum of its proper divisors (129360975).

387664593 is a wasteful number, since it uses less digits than its factorization.

387664593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34863.

The product of its digits is 3265920, while the sum is 51.

The square root of 387664593 is about 19689.1999075635. The cubic root of 387664593 is about 729.1530761019.

The spelling of 387664593 in words is "three hundred eighty-seven million, six hundred sixty-four thousand, five hundred ninety-three".