387225587 has 12 divisors (see below), whose sum is σ = 452065176. Its totient is φ = 330714720.

The previous prime is 387225583. The next prime is 387225593. The reversal of 387225587 is 785522783.

It is a happy number.

It is not a de Polignac number, because 387225587 - 2² = 387225583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387225583) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 293 + ... + 27830.

It is an arithmetic number, because the mean of its divisors is an integer number (37672098).

Almost surely, 2^387225587 is an apocalyptic number.

387225587 is a deficient number, since it is larger than the sum of its proper divisors (64839589).

387225587 is a wasteful number, since it uses less digits than its factorization.

387225587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28418 (or 28411 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The square root of 387225587 is about 19678.0483534318. The cubic root of 387225587 is about 728.8777319949.

The spelling of 387225587 in words is "three hundred eighty-seven million, two hundred twenty-five thousand, five hundred eighty-seven".