4085739 has 12 divisors (see below), whose sum is σ = 6744816. Its totient is φ = 2334672.

The previous prime is 4085699. The next prime is 4085747. The reversal of 4085739 is 9375804.

It is not a de Polignac number, because 4085739 - 2¹¹ = 4083691 is a prime.

It is a super-2 number, since 2×4085739² = 33386526352242, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

4085739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4085749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32364 + ... + 32489.

It is an arithmetic number, because the mean of its divisors is an integer number (562068).

Almost surely, 2^4085739 is an apocalyptic number.

4085739 is a deficient number, since it is larger than the sum of its proper divisors (2659077).

4085739 is a wasteful number, since it uses less digits than its factorization.

4085739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64866 (or 64863 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 4085739 is about 2021.3211026455. The cubic root of 4085739 is about 159.8662815063.

The spelling of 4085739 in words is "four million, eighty-five thousand, seven hundred thirty-nine".