961217711 has 16 divisors (see below), whose sum is σ = 991537920. Its totient is φ = 931487040.

The previous prime is 961217681. The next prime is 961217729. The reversal of 961217711 is 117712169.

961217711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 961217711 - 2¹⁴ = 961201327 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 (961217611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973510 + ... + 1973996.

It is an arithmetic number, because the mean of its divisors is an integer number (61971120).

Almost surely, 2^961217711 is an apocalyptic number.

961217711 is a deficient number, since it is larger than the sum of its proper divisors (30320209).

961217711 is a wasteful number, since it uses less digits than its factorization.

961217711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its digits is 5292, while the sum is 35.

The square root of 961217711 is about 31003.5112688869. The cubic root of 961217711 is about 986.9017553838.

The spelling of 961217711 in words is "nine hundred sixty-one million, two hundred seventeen thousand, seven hundred eleven".