85402903 has 2 divisors, whose sum is σ = 85402904. Its totient is φ = 85402902.

The previous prime is 85402897. The next prime is 85402907. The reversal of 85402903 is 30920458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85402903 - 2⁹ = 85402391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85402907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42701451 + 42701452.

It is an arithmetic number, because the mean of its divisors is an integer number (42701452).

Almost surely, 2^85402903 is an apocalyptic number.

85402903 is a deficient number, since it is larger than the sum of its proper divisors (1).

85402903 is an equidigital number, since it uses as much as digits as its factorization.

85402903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 85402903 is about 9241.3691085250. The cubic root of 85402903 is about 440.3765767172.

The spelling of 85402903 in words is "eighty-five million, four hundred two thousand, nine hundred three".