4387005 has 48 divisors (see below), whose sum is σ = 9160320. Its totient is φ = 1897344.

The previous prime is 4386973. The next prime is 4387013. The reversal of 4387005 is 5007834.

It is not a de Polignac number, because 4387005 - 2⁵ = 4386973 is a prime.

It is an Ulam number.

It is a Curzon number.

4387005 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4387005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5619 + ... + 6351.

It is an arithmetic number, because the mean of its divisors is an integer number (190840).

Almost surely, 2^4387005 is an apocalyptic number.

4387005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4387005 is an abundant number, since it is smaller than the sum of its proper divisors (4773315).

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

4387005 is a wasteful number, since it uses less digits than its factorization.

4387005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 4387005 is about 2094.5178442782. The cubic root of 4387005 is about 163.7027756524.

The spelling of 4387005 in words is "four million, three hundred eighty-seven thousand, five".