858964229 has 2 divisors, whose sum is σ = 858964230. Its totient is φ = 858964228.

The previous prime is 858964207. The next prime is 858964231. The reversal of 858964229 is 922469858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490401025 + 368563204 = 22145^2 + 19198^2 .

It is a cyclic number.

It is not a de Polignac number, because 858964229 - 2¹² = 858960133 is a prime.

Together with 858964231, 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 (858964429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429482114 + 429482115.

It is an arithmetic number, because the mean of its divisors is an integer number (429482115).

Almost surely, 2^858964229 is an apocalyptic number.

It is an amenable number.

858964229 is a deficient number, since it is larger than the sum of its proper divisors (1).

858964229 is an equidigital number, since it uses as much as digits as its factorization.

858964229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 53.

The square root of 858964229 is about 29308.0915277675. The cubic root of 858964229 is about 950.5866105555.

The spelling of 858964229 in words is "eight hundred fifty-eight million, nine hundred sixty-four thousand, two hundred twenty-nine".