85403805 has 16 divisors (see below), whose sum is σ = 139824960. Its totient is φ = 44489088.

The previous prime is 85403797. The next prime is 85403827. The reversal of 85403805 is 50830458.

It is a happy number.

It is not a de Polignac number, because 85403805 - 2³ = 85403797 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 65560 + ... + 66849.

It is an arithmetic number, because the mean of its divisors is an integer number (8739060).

Almost surely, 2^85403805 is an apocalyptic number.

It is an amenable number.

85403805 is a deficient number, since it is larger than the sum of its proper divisors (54421155).

85403805 is a wasteful number, since it uses less digits than its factorization.

85403805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132460.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 85403805 is about 9241.4179106888. The cubic root of 85403805 is about 440.3781270871.

The spelling of 85403805 in words is "eighty-five million, four hundred three thousand, eight hundred five".