3961564033 has 16 divisors (see below), whose sum is σ = 4651186176. Its totient is φ = 3303336960.

The previous prime is 3961564001. The next prime is 3961564039. The reversal of 3961564033 is 3304651693.

It is not a de Polignac number, because 3961564033 - 2⁵ = 3961564001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3961564039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81760 + ... + 120862.

It is an arithmetic number, because the mean of its divisors is an integer number (290699136).

Almost surely, 2^3961564033 is an apocalyptic number.

It is an amenable number.

3961564033 is a deficient number, since it is larger than the sum of its proper divisors (689622143).

3961564033 is a wasteful number, since it uses less digits than its factorization.

3961564033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39504.

The product of its (nonzero) digits is 174960, while the sum is 40.

The square root of 3961564033 is about 62940.9567213591. The cubic root of 3961564033 is about 1582.3002378149.

The spelling of 3961564033 in words is "three billion, nine hundred sixty-one million, five hundred sixty-four thousand, thirty-three".