85406203 has 2 divisors, whose sum is σ = 85406204. Its totient is φ = 85406202.

The previous prime is 85406177. The next prime is 85406207. The reversal of 85406203 is 30260458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85406203 - 2⁵ = 85406171 is a prime.

It is not a weakly prime, because it can be changed into another prime (85406207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42703101 + 42703102.

It is an arithmetic number, because the mean of its divisors is an integer number (42703102).

Almost surely, 2^85406203 is an apocalyptic number.

85406203 is a deficient number, since it is larger than the sum of its proper divisors (1).

85406203 is an equidigital number, since it uses as much as digits as its factorization.

85406203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 85406203 is about 9241.5476517735. The cubic root of 85406203 is about 440.3822487492.

The spelling of 85406203 in words is "eighty-five million, four hundred six thousand, two hundred three".