858903361 has 2 divisors, whose sum is σ = 858903362. Its totient is φ = 858903360.

The previous prime is 858903347. The next prime is 858903373. The reversal of 858903361 is 163309858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443355136 + 415548225 = 21056^2 + 20385^2 .

It is a cyclic number.

It is not a de Polignac number, because 858903361 - 2⁷ = 858903233 is a prime.

It is not a weakly prime, because it can be changed into another prime (858903761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429451680 + 429451681.

It is an arithmetic number, because the mean of its divisors is an integer number (429451681).

Almost surely, 2^858903361 is an apocalyptic number.

It is an amenable number.

858903361 is a deficient number, since it is larger than the sum of its proper divisors (1).

858903361 is an equidigital number, since it uses as much as digits as its factorization.

858903361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 858903361 is about 29307.0530930696. The cubic root of 858903361 is about 950.5641565073.

The spelling of 858903361 in words is "eight hundred fifty-eight million, nine hundred three thousand, three hundred sixty-one".