3949647075 has 120 divisors (see below), whose sum is σ = 8025999696. Its totient is φ = 1904256000.

The previous prime is 3949647049. The next prime is 3949647109. The reversal of 3949647075 is 5707469493.

It is a happy number.

It is not a de Polignac number, because 3949647075 - 2¹⁹ = 3949122787 is a prime.

It is an unprimeable number.

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 119 ways as a sum of consecutive naturals, for example, 5189695 + ... + 5190455.

Almost surely, 2^3949647075 is an apocalyptic number.

3949647075 is an abundant number, since it is smaller than the sum of its proper divisors (4076352621).

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

3949647075 is a wasteful number, since it uses less digits than its factorization.

3949647075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The square root of 3949647075 is about 62846.2176666186. The cubic root of 3949647075 is about 1580.7120482026.

It can be divided in two parts, 394 and 9647075, that added together give a palindrome (9647469).

The spelling of 3949647075 in words is "three billion, nine hundred forty-nine million, six hundred forty-seven thousand, seventy-five".