3895439 has 4 divisors (see below), whose sum is σ = 3942456. Its totient is φ = 3848424.

The previous prime is 3895433. The next prime is 3895453. The reversal of 3895439 is 9345983.

3895439 = 63² + 64² + ... + 228².

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 3895439 - 2⁸ = 3895183 is a prime.

It is a super-3 number, since 3×3895439³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3895396 and 3895405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3895433) 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, 23384 + ... + 23549.

It is an arithmetic number, because the mean of its divisors is an integer number (985614).

Almost surely, 2^3895439 is an apocalyptic number.

3895439 is a deficient number, since it is larger than the sum of its proper divisors (47017).

3895439 is an equidigital number, since it uses as much as digits as its factorization.

3895439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47016.

The product of its digits is 116640, while the sum is 41.

The square root of 3895439 is about 1973.6866519283. The cubic root of 3895439 is about 157.3447062584.

It can be divided in two parts, 3895 and 439, that added together give a palindrome (4334).

The spelling of 3895439 in words is "three million, eight hundred ninety-five thousand, four hundred thirty-nine".