961404169 has 6 divisors (see below), whose sum is σ = 1056750170. Its totient is φ = 874003680.

The previous prime is 961404091. The next prime is 961404187.

961404169 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 960194169 + 1210000 = 30987^2 + 1100^2 .

It is a de Polignac number, because none of the positive numbers 2^k-961404169 is a prime.

It is a super-2 number, since 2×961404169² = 1848595952341161122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961404869) 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, 3972624 + ... + 3972865.

Almost surely, 2^961404169 is an apocalyptic number.

It is an amenable number.

961404169 is a deficient number, since it is larger than the sum of its proper divisors (95346001).

961404169 is a wasteful number, since it uses less digits than its factorization.

961404169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945511 (or 7945500 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 961404169 is about 31006.5181695720. The cubic root of 961404169 is about 986.9655646638.

The spelling of 961404169 in words is "nine hundred sixty-one million, four hundred four thousand, one hundred sixty-nine".