3961009255 has 16 divisors (see below), whose sum is σ = 5434148160. Its totient is φ = 2715167232.

The previous prime is 3961009229. The next prime is 3961009267. The reversal of 3961009255 is 5529001693.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3961009255 - 2⁹ = 3961008743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89797 + ... + 126433.

It is an arithmetic number, because the mean of its divisors is an integer number (339634260).

Almost surely, 2^3961009255 is an apocalyptic number.

3961009255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3961009255 is a deficient number, since it is larger than the sum of its proper divisors (1473138905).

3961009255 is a wasteful number, since it uses less digits than its factorization.

3961009255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39738.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 3961009255 is about 62936.5494367144. The cubic root of 3961009255 is about 1582.2263725154.

The spelling of 3961009255 in words is "three billion, nine hundred sixty-one million, nine thousand, two hundred fifty-five".