890742029 has 2 divisors, whose sum is σ = 890742030. Its totient is φ = 890742028.

The previous prime is 890742011. The next prime is 890742031. The reversal of 890742029 is 920247098.

890742029 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., 800776804 + 89965225 = 28298^2 + 9485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-890742029 is a prime.

Together with 890742031, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890742089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445371014 + 445371015.

It is an arithmetic number, because the mean of its divisors is an integer number (445371015).

Almost surely, 2^890742029 is an apocalyptic number.

It is an amenable number.

890742029 is a deficient number, since it is larger than the sum of its proper divisors (1).

890742029 is an equidigital number, since it uses as much as digits as its factorization.

890742029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 890742029 is about 29845.3016235387. The cubic root of 890742029 is about 962.1674223760.

The spelling of 890742029 in words is "eight hundred ninety million, seven hundred forty-two thousand, twenty-nine".