4076389 has 4 divisors (see below), whose sum is σ = 4153356. Its totient is φ = 3999424.

The previous prime is 4076383. The next prime is 4076411. The reversal of 4076389 is 9836704.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2772225 + 1304164 = 1665^2 + 1142^2 .

It is a cyclic number.

It is not a de Polignac number, because 4076389 - 2³ = 4076381 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 0 + 7⁶ + 6⁸ + 3¹¹ + 8⁷ + 9³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4076381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38404 + ... + 38509.

It is an arithmetic number, because the mean of its divisors is an integer number (1038339).

Almost surely, 2^4076389 is an apocalyptic number.

It is an amenable number.

4076389 is a deficient number, since it is larger than the sum of its proper divisors (76967).

4076389 is an equidigital number, since it uses as much as digits as its factorization.

4076389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76966.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 4076389 is about 2019.0069341139. The cubic root of 4076389 is about 159.7442398224.

It can be divided in two parts, 4076 and 389, that added together give a triangular number (4465 = T₉₄).

The spelling of 4076389 in words is "four million, seventy-six thousand, three hundred eighty-nine".