961775973 has 6 divisors (see below), whose sum is σ = 1389231974. Its totient is φ = 641183976.

The previous prime is 961775921. The next prime is 961775977. The reversal of 961775973 is 379577169.

961775973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 733705569 + 228070404 = 27087^2 + 15102^2 .

It is not a de Polignac number, because 961775973 - 2²¹ = 959678821 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 (961775977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53431990 + ... + 53432007.

Almost surely, 2^961775973 is an apocalyptic number.

It is an amenable number.

961775973 is a deficient number, since it is larger than the sum of its proper divisors (427456001).

961775973 is a wasteful number, since it uses less digits than its factorization.

961775973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106864003 (or 106864000 counting only the distinct ones).

The product of its digits is 2500470, while the sum is 54.

The square root of 961775973 is about 31012.5131680746. The cubic root of 961775973 is about 987.0927780538.

The spelling of 961775973 in words is "nine hundred sixty-one million, seven hundred seventy-five thousand, nine hundred seventy-three".