961773565 has 16 divisors (see below), whose sum is σ = 1166088960. Its totient is φ = 761480320.

The previous prime is 961773551. The next prime is 961773569. The reversal of 961773565 is 565377169.

It is not a de Polignac number, because 961773565 - 2¹³ = 961765373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961773569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243960 + ... + 247870.

It is an arithmetic number, because the mean of its divisors is an integer number (72880560).

Almost surely, 2^961773565 is an apocalyptic number.

It is an amenable number.

961773565 is a deficient number, since it is larger than the sum of its proper divisors (204315395).

961773565 is a wasteful number, since it uses less digits than its factorization.

961773565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412.

The product of its digits is 1190700, while the sum is 49.

The square root of 961773565 is about 31012.4743450116. The cubic root of 961773565 is about 987.0919542578.

The spelling of 961773565 in words is "nine hundred sixty-one million, seven hundred seventy-three thousand, five hundred sixty-five".