961883540 has 12 divisors (see below), whose sum is σ = 2019955476. Its totient is φ = 384753408.

The previous prime is 961883537. The next prime is 961883543. The reversal of 961883540 is 45388169.

961883540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (961883537) and next prime (961883543).

It can be written as a sum of positive squares in 2 ways, for example, as 209149444 + 752734096 = 14462^2 + 27436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 961883491 and 961883500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961883543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24047069 + ... + 24047108.

It is an arithmetic number, because the mean of its divisors is an integer number (168329623).

Almost surely, 2^961883540 is an apocalyptic number.

It is an amenable number.

961883540 is an abundant number, since it is smaller than the sum of its proper divisors (1058071936).

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

961883540 is a wasteful number, since it uses less digits than its factorization.

961883540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48094186 (or 48094184 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 961883540 is about 31014.2473711680. The cubic root of 961883540 is about 987.1295761764.

The spelling of 961883540 in words is "nine hundred sixty-one million, eight hundred eighty-three thousand, five hundred forty".