961749655 has 8 divisors (see below), whose sum is σ = 1154266272. Its totient is φ = 769288608.

The previous prime is 961749647. The next prime is 961749683. The reversal of 961749655 is 556947169.

961749655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961749655 - 2³ = 961749647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58309 + ... + 72961.

It is an arithmetic number, because the mean of its divisors is an integer number (144283284).

Almost surely, 2^961749655 is an apocalyptic number.

961749655 is a deficient number, since it is larger than the sum of its proper divisors (192516617).

961749655 is a wasteful number, since it uses less digits than its factorization.

961749655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27785.

The product of its digits is 2041200, while the sum is 52.

The square root of 961749655 is about 31012.0888525749. The cubic root of 961749655 is about 987.0837743823.

The spelling of 961749655 in words is "nine hundred sixty-one million, seven hundred forty-nine thousand, six hundred fifty-five".