961727863 has 8 divisors (see below), whose sum is σ = 967010688. Its totient is φ = 956454144.

The previous prime is 961727861. The next prime is 961727881. The reversal of 961727863 is 368727169.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961727863 - 2¹ = 961727861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961727861) 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, 344931 + ... + 347707.

It is an arithmetic number, because the mean of its divisors is an integer number (120876336).

Almost surely, 2^961727863 is an apocalyptic number.

961727863 is a deficient number, since it is larger than the sum of its proper divisors (5282825).

961727863 is a wasteful number, since it uses less digits than its factorization.

961727863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553.

The product of its digits is 762048, while the sum is 49.

The square root of 961727863 is about 31011.7375037259. The cubic root of 961727863 is about 987.0763189799.

The spelling of 961727863 in words is "nine hundred sixty-one million, seven hundred twenty-seven thousand, eight hundred sixty-three".