4320387 has 6 divisors (see below), whose sum is σ = 6240572. Its totient is φ = 2880252.

The previous prime is 4320383. The next prime is 4320419. The reversal of 4320387 is 7830234.

It is not a de Polignac number, because 4320387 - 2² = 4320383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320387.

It is not an unprimeable number, because it can be changed into a prime (4320383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240013 + ... + 240030.

Almost surely, 2^4320387 is an apocalyptic number.

4320387 is a deficient number, since it is larger than the sum of its proper divisors (1920185).

4320387 is a wasteful number, since it uses less digits than its factorization.

4320387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480049 (or 480046 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 4320387 is about 2078.5540647287. The cubic root of 4320387 is about 162.8699201820.

The spelling of 4320387 in words is "four million, three hundred twenty thousand, three hundred eighty-seven".