858441601 has 2 divisors, whose sum is σ = 858441602. Its totient is φ = 858441600.

The previous prime is 858441539. The next prime is 858441611. The reversal of 858441601 is 106144858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 813618576 + 44823025 = 28524^2 + 6695^2 .

It is a cyclic number.

It is not a de Polignac number, because 858441601 - 2¹⁷ = 858310529 is a prime.

It is not a weakly prime, because it can be changed into another prime (858441611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429220800 + 429220801.

It is an arithmetic number, because the mean of its divisors is an integer number (429220801).

Almost surely, 2^858441601 is an apocalyptic number.

It is an amenable number.

858441601 is a deficient number, since it is larger than the sum of its proper divisors (1).

858441601 is an equidigital number, since it uses as much as digits as its factorization.

858441601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 858441601 is about 29299.1740668572. The cubic root of 858441601 is about 950.3937798746.

The spelling of 858441601 in words is "eight hundred fifty-eight million, four hundred forty-one thousand, six hundred one".