4309387 has 4 divisors (see below), whose sum is σ = 4414536. Its totient is φ = 4204240.

The previous prime is 4309369. The next prime is 4309391. The reversal of 4309387 is 7839034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4309387 - 2⁷ = 4309259 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4309187) 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, 52513 + ... + 52594.

It is an arithmetic number, because the mean of its divisors is an integer number (1103634).

Almost surely, 2^4309387 is an apocalyptic number.

4309387 is a deficient number, since it is larger than the sum of its proper divisors (105149).

4309387 is a wasteful number, since it uses less digits than its factorization.

4309387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105148.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 4309387 is about 2075.9063080977. The cubic root of 4309387 is about 162.7315767295.

The spelling of 4309387 in words is "four million, three hundred nine thousand, three hundred eighty-seven".