961711020 has 72 divisors (see below), whose sum is σ = 2919820176. Its totient is φ = 256225152.

The previous prime is 961710931. The next prime is 961711027. The reversal of 961711020 is 20117169.

961711020 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 (961711027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310399 + ... + 313481.

It is an arithmetic number, because the mean of its divisors is an integer number (40553058).

Almost surely, 2^961711020 is an apocalyptic number.

961711020 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

961711020 is an abundant number, since it is smaller than the sum of its proper divisors (1958109156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961711020 is a wasteful number, since it uses less digits than its factorization.

961711020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831 (or 4826 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 961711020 is about 31011.4659440666. The cubic root of 961711020 is about 987.0705566348.

Adding to 961711020 its reverse (20117169), we get a palindrome (981828189).

The spelling of 961711020 in words is "nine hundred sixty-one million, seven hundred eleven thousand, twenty".