4391407 has 4 divisors (see below), whose sum is σ = 4416120. Its totient is φ = 4366696.

The previous prime is 4391399. The next prime is 4391411. The reversal of 4391407 is 7041934.

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 4391407 - 2³ = 4391399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12088 + ... + 12445.

It is an arithmetic number, because the mean of its divisors is an integer number (1104030).

Almost surely, 2^4391407 is an apocalyptic number.

4391407 is a deficient number, since it is larger than the sum of its proper divisors (24713).

4391407 is a wasteful number, since it uses less digits than its factorization.

4391407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24712.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4391407 is about 2095.5684193078. The cubic root of 4391407 is about 163.7575114554.

The spelling of 4391407 in words is "four million, three hundred ninety-one thousand, four hundred seven".