961723867 has 8 divisors (see below), whose sum is σ = 1038529856. Its totient is φ = 885321792.

The previous prime is 961723831. The next prime is 961723871. The reversal of 961723867 is 768327169.

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 a de Polignac number, because none of the positive numbers 2^k-961723867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 961723867.

It is not an unprimeable number, because it can be changed into a prime (961723877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96018 + ... + 105559.

It is an arithmetic number, because the mean of its divisors is an integer number (129816232).

Almost surely, 2^961723867 is an apocalyptic number.

961723867 is a deficient number, since it is larger than the sum of its proper divisors (76805989).

961723867 is a wasteful number, since it uses less digits than its factorization.

961723867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201957.

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

The square root of 961723867 is about 31011.6730764401. The cubic root of 961723867 is about 987.0749518702.

The spelling of 961723867 in words is "nine hundred sixty-one million, seven hundred twenty-three thousand, eight hundred sixty-seven".