961863994 has 16 divisors (see below), whose sum is σ = 1775749248. Its totient is φ = 380517552.

The previous prime is 961863989. The next prime is 961863997. The reversal of 961863994 is 499368169.

961863994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (961863997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2642302 + ... + 2642665.

It is an arithmetic number, because the mean of its divisors is an integer number (110984328).

Almost surely, 2^961863994 is an apocalyptic number.

961863994 is a deficient number, since it is larger than the sum of its proper divisors (813885254).

961863994 is a wasteful number, since it uses less digits than its factorization.

961863994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284989.

The product of its digits is 2519424, while the sum is 55.

The square root of 961863994 is about 31013.9322563263. The cubic root of 961863994 is about 987.1228897934.

The spelling of 961863994 in words is "nine hundred sixty-one million, eight hundred sixty-three thousand, nine hundred ninety-four".