961543926 has 96 divisors (see below), whose sum is σ = 2524285440. Its totient is φ = 265764240.

The previous prime is 961543909. The next prime is 961543939. The reversal of 961543926 is 629345169.

961543926 is a `hidden beast` number, since 9 + 615 + 4 + 3 + 9 + 26 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 361935 + ... + 364581.

It is an arithmetic number, because the mean of its divisors is an integer number (26294640).

Almost surely, 2^961543926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961543926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262142720).

961543926 is an abundant number, since it is smaller than the sum of its proper divisors (1562741514).

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

961543926 is a wasteful number, since it uses less digits than its factorization.

961543926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2690 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 961543926 is about 31008.7717589717. The cubic root of 961543926 is about 987.0133866127.

The spelling of 961543926 in words is "nine hundred sixty-one million, five hundred forty-three thousand, nine hundred twenty-six".