3489404447 has 4 divisors (see below), whose sum is σ = 3491312016. Its totient is φ = 3487496880.

The previous prime is 3489404419. The next prime is 3489404509. The reversal of 3489404447 is 7444049843.

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 3489404447 - 2⁶ = 3489404383 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 (3489404147) 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, 951038 + ... + 954699.

It is an arithmetic number, because the mean of its divisors is an integer number (872828004).

Almost surely, 2^3489404447 is an apocalyptic number.

3489404447 is a deficient number, since it is larger than the sum of its proper divisors (1907569).

3489404447 is a wasteful number, since it uses less digits than its factorization.

3489404447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907568.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The square root of 3489404447 is about 59071.1811884611. The cubic root of 3489404447 is about 1516.7608258788.

The spelling of 3489404447 in words is "three billion, four hundred eighty-nine million, four hundred four thousand, four hundred forty-seven".