10961289 has 6 divisors (see below), whose sum is σ = 15832986. Its totient is φ = 7307520.

The previous prime is 10961281. The next prime is 10961297. The reversal of 10961289 is 98216901.

It is an interprime number because it is at equal distance from previous prime (10961281) and next prime (10961297).

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 71289 = 3300^2 + 267^2 .

It is not a de Polignac number, because 10961289 - 2³ = 10961281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10961281) 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, 608952 + ... + 608969.

It is an arithmetic number, because the mean of its divisors is an integer number (2638831).

Almost surely, 2^10961289 is an apocalyptic number.

It is an amenable number.

10961289 is a deficient number, since it is larger than the sum of its proper divisors (4871697).

10961289 is a wasteful number, since it uses less digits than its factorization.

10961289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217927 (or 1217924 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 10961289 is about 3310.7837440703. The cubic root of 10961289 is about 222.1368160784.

The spelling of 10961289 in words is "ten million, nine hundred sixty-one thousand, two hundred eighty-nine".