961681173 has 8 divisors (see below), whose sum is σ = 1284792768. Its totient is φ = 639845184.

The previous prime is 961681153. The next prime is 961681271. The reversal of 961681173 is 371186169.

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

It is not a de Polignac number, because 961681173 - 2⁸ = 961680917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961681103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317140 + ... + 320157.

It is an arithmetic number, because the mean of its divisors is an integer number (160599096).

Almost surely, 2^961681173 is an apocalyptic number.

It is an amenable number.

961681173 is a deficient number, since it is larger than the sum of its proper divisors (323111595).

961681173 is a wasteful number, since it uses less digits than its factorization.

961681173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637803.

The product of its digits is 54432, while the sum is 42.

The square root of 961681173 is about 31010.9847150973. The cubic root of 961681173 is about 987.0603451821.

The spelling of 961681173 in words is "nine hundred sixty-one million, six hundred eighty-one thousand, one hundred seventy-three".