3969503356 has 48 divisors (see below), whose sum is σ = 8574197184. Its totient is φ = 1565853696.

The previous prime is 3969503309. The next prime is 3969503359. The reversal of 3969503356 is 6533059693.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969503359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113046 + ... + 143938.

It is an arithmetic number, because the mean of its divisors is an integer number (178629108).

Almost surely, 2^3969503356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3969503356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4287098592).

3969503356 is an abundant number, since it is smaller than the sum of its proper divisors (4604693828).

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

3969503356 is a wasteful number, since it uses less digits than its factorization.

3969503356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31270 (or 31268 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 49.

The square root of 3969503356 is about 63003.9947622371. The cubic root of 3969503356 is about 1583.3565554587.

The spelling of 3969503356 in words is "three billion, nine hundred sixty-nine million, five hundred three thousand, three hundred fifty-six".