85418401 has 2 divisors, whose sum is σ = 85418402. Its totient is φ = 85418400.

The previous prime is 85418383. The next prime is 85418413. The reversal of 85418401 is 10481458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 33362176 = 7215^2 + 5776^2 .

It is a cyclic number.

It is not a de Polignac number, because 85418401 - 2⁹ = 85417889 is a prime.

It is not a weakly prime, because it can be changed into another prime (85418441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42709200 + 42709201.

It is an arithmetic number, because the mean of its divisors is an integer number (42709201).

Almost surely, 2^85418401 is an apocalyptic number.

It is an amenable number.

85418401 is a deficient number, since it is larger than the sum of its proper divisors (1).

85418401 is an equidigital number, since it uses as much as digits as its factorization.

85418401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 85418401 is about 9242.2075826071. The cubic root of 85418401 is about 440.4032133738.

Adding to 85418401 its reverse (10481458), we get a palindrome (95899859).

The spelling of 85418401 in words is "eighty-five million, four hundred eighteen thousand, four hundred one".