289706941 has 2 divisors, whose sum is σ = 289706942. Its totient is φ = 289706940.

The previous prime is 289706917. The next prime is 289706969. The reversal of 289706941 is 149607982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145202500 + 144504441 = 12050^2 + 12021^2 .

It is a cyclic number.

It is not a de Polignac number, because 289706941 - 2⁹ = 289706429 is a prime.

It is a super-2 number, since 2×289706941² = 167860223327154962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 289706891 and 289706900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289700941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144853470 + 144853471.

It is an arithmetic number, because the mean of its divisors is an integer number (144853471).

Almost surely, 2^289706941 is an apocalyptic number.

It is an amenable number.

289706941 is a deficient number, since it is larger than the sum of its proper divisors (1).

289706941 is an equidigital number, since it uses as much as digits as its factorization.

289706941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 289706941 is about 17020.7796824940. The cubic root of 289706941 is about 661.6875554516.

The spelling of 289706941 in words is "two hundred eighty-nine million, seven hundred six thousand, nine hundred forty-one".