85000403 has 2 divisors, whose sum is σ = 85000404. Its totient is φ = 85000402.

The previous prime is 85000381. The next prime is 85000411. The reversal of 85000403 is 30400058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85000403 - 2⁸ = 85000147 is a prime.

It is not a weakly prime, because it can be changed into another prime (85000423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42500201 + 42500202.

It is an arithmetic number, because the mean of its divisors is an integer number (42500202).

Almost surely, 2^85000403 is an apocalyptic number.

85000403 is a deficient number, since it is larger than the sum of its proper divisors (1).

85000403 is an equidigital number, since it uses as much as digits as its factorization.

85000403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 85000403 is about 9219.5663130106. The cubic root of 85000403 is about 439.6836620862.

The spelling of 85000403 in words is "eighty-five million, four hundred three", and thus it is an aban number.