289161963 has 6 divisors (see below), whose sum is σ = 417678404. Its totient is φ = 192774636.

The previous prime is 289161949. The next prime is 289161991. The reversal of 289161963 is 369161982.

It is a happy number.

289161963 is a `hidden beast` number, since 28 + 9 + 1 + 619 + 6 + 3 = 666.

It is not a de Polignac number, because 289161963 - 2¹² = 289157867 is a prime.

It is a super-2 number, since 2×289161963² = 167229281692026738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289161923) 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, 16064545 + ... + 16064562.

Almost surely, 2^289161963 is an apocalyptic number.

289161963 is a deficient number, since it is larger than the sum of its proper divisors (128516441).

289161963 is a wasteful number, since it uses less digits than its factorization.

289161963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32129113 (or 32129110 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 289161963 is about 17004.7629504207. The cubic root of 289161963 is about 661.2723870385.

The spelling of 289161963 in words is "two hundred eighty-nine million, one hundred sixty-one thousand, nine hundred sixty-three".