961384550 has 24 divisors (see below), whose sum is σ = 2043629616. Its totient is φ = 329617440.

The previous prime is 961384549. The next prime is 961384637. The reversal of 961384550 is 55483169.

It is a junction number, because it is equal to n+sod(n) for n = 961384498 and 961384507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1373057 + ... + 1373756.

It is an arithmetic number, because the mean of its divisors is an integer number (85151234).

Almost surely, 2^961384550 is an apocalyptic number.

961384550 is an abundant number, since it is smaller than the sum of its proper divisors (1082245066).

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

961384550 is a wasteful number, since it uses less digits than its factorization.

961384550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746832 (or 2746827 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 961384550 is about 31006.2017989950. The cubic root of 961384550 is about 986.9588510777.

The spelling of 961384550 in words is "nine hundred sixty-one million, three hundred eighty-four thousand, five hundred fifty".