961787169 has 16 divisors (see below), whose sum is σ = 1628423040. Its totient is φ = 549592560.

The previous prime is 961787153. The next prime is 961787171.

961787169 is a `hidden beast` number, since 9 + 617 + 8 + 7 + 16 + 9 = 666.

961787169 is nontrivially palindromic in base 10.

961787169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 961787169 - 2⁴ = 961787153 is a prime.

It is a super-2 number, since 2×961787169² = 1850069116906069122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (961787269) 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, 2544222 + ... + 2544599.

It is an arithmetic number, because the mean of its divisors is an integer number (101776440).

Almost surely, 2^961787169 is an apocalyptic number.

It is an amenable number.

961787169 is a deficient number, since it is larger than the sum of its proper divisors (666635871).

961787169 is a wasteful number, since it uses less digits than its factorization.

961787169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088837 (or 5088831 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 961787169 is about 31012.6936753324. The cubic root of 961787169 is about 987.0966082763.

The spelling of 961787169 in words is "nine hundred sixty-one million, seven hundred eighty-seven thousand, one hundred sixty-nine".