3669439 has 4 divisors (see below), whose sum is σ = 3787840. Its totient is φ = 3551040.

The previous prime is 3669427. The next prime is 3669469. The reversal of 3669439 is 9349663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9349663 = 47 ⋅198929.

It is a cyclic number.

It is not a de Polignac number, because 3669439 - 2⁷ = 3669311 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 (3669469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59154 + ... + 59215.

It is an arithmetic number, because the mean of its divisors is an integer number (946960).

Almost surely, 2^3669439 is an apocalyptic number.

3669439 is a deficient number, since it is larger than the sum of its proper divisors (118401).

3669439 is a wasteful number, since it uses less digits than its factorization.

3669439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118400.

The product of its digits is 104976, while the sum is 40.

The square root of 3669439 is about 1915.5779806628. The cubic root of 3669439 is about 154.2410208009.

The spelling of 3669439 in words is "three million, six hundred sixty-nine thousand, four hundred thirty-nine".