890689061 has 2 divisors, whose sum is σ = 890689062. Its totient is φ = 890689060.

The previous prime is 890688959. The next prime is 890689067. The reversal of 890689061 is 160986098.

890689061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461992036 + 428697025 = 21494^2 + 20705^2 .

It is a cyclic number.

It is not a de Polignac number, because 890689061 - 2²² = 886494757 is a prime.

It is a super-3 number, since 3×890689061³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 890688997 and 890689015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890689067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445344530 + 445344531.

It is an arithmetic number, because the mean of its divisors is an integer number (445344531).

Almost surely, 2^890689061 is an apocalyptic number.

It is an amenable number.

890689061 is a deficient number, since it is larger than the sum of its proper divisors (1).

890689061 is an equidigital number, since it uses as much as digits as its factorization.

890689061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 890689061 is about 29844.4142344929. The cubic root of 890689061 is about 962.1483502269.

The spelling of 890689061 in words is "eight hundred ninety million, six hundred eighty-nine thousand, sixty-one".