3955320963 has 144 divisors (see below), whose sum is σ = 7100297568. Its totient is φ = 2189721600.

The previous prime is 3955320959. The next prime is 3955320973. The reversal of 3955320963 is 3690235593.

3955320963 is a `hidden beast` number, since 3 + 9 + 553 + 2 + 0 + 96 + 3 = 666.

It is not a de Polignac number, because 3955320963 - 2² = 3955320959 is a prime.

It is a Smith number, since the sum of its digits (45) 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 (3955320973) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20493795 + ... + 20493987.

It is an arithmetic number, because the mean of its divisors is an integer number (49307622).

Almost surely, 2^3955320963 is an apocalyptic number.

3955320963 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3955320963 is a deficient number, since it is larger than the sum of its proper divisors (3144976605).

3955320963 is a wasteful number, since it uses less digits than its factorization.

3955320963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 45.

The square root of 3955320963 is about 62891.3425123045. The cubic root of 3955320963 is about 1581.4686130009.

It can be divided in two parts, 39553 and 20963, that added together give a square (60516 = 246²).

The spelling of 3955320963 in words is "three billion, nine hundred fifty-five million, three hundred twenty thousand, nine hundred sixty-three".