3969504016 has 45 divisors (see below), whose sum is σ = 8126806581. Its totient is φ = 1878023232.

The previous prime is 3969503987. The next prime is 3969504017. The reversal of 3969504016 is 6104059693.

The square root of 3969504016 is 63004.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2285222416 + 1684281600 = 47804^2 + 41040^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3969504017) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4787890 + ... + 4788718.

Almost surely, 2^3969504016 is an apocalyptic number.

3969504016 is the 63004-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3969504016

3969504016 is an abundant number, since it is smaller than the sum of its proper divisors (4157302565).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3969504016 is an frugal number, since it uses more digits than its factorization.

3969504016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The cubic root of 3969504016 is about 1583.3566432124.

The spelling of 3969504016 in words is "three billion, nine hundred sixty-nine million, five hundred four thousand, sixteen".