4007389 has 4 divisors (see below), whose sum is σ = 4034080. Its totient is φ = 3980700.

The previous prime is 4007369. The next prime is 4007407. The reversal of 4007389 is 9837004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4007389 - 2⁷ = 4007261 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 4007389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4007369) 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, 13119 + ... + 13420.

It is an arithmetic number, because the mean of its divisors is an integer number (1008520).

Almost surely, 2^4007389 is an apocalyptic number.

It is an amenable number.

4007389 is a deficient number, since it is larger than the sum of its proper divisors (26691).

4007389 is a wasteful number, since it uses less digits than its factorization.

4007389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26690.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 4007389 is about 2001.8463977039. The cubic root of 4007389 is about 158.8377892923.

The spelling of 4007389 in words is "four million, seven thousand, three hundred eighty-nine".