85020470 has 16 divisors (see below), whose sum is σ = 156770208. Its totient is φ = 33178560.

The previous prime is 85020457. The next prime is 85020473. The reversal of 85020470 is 7402058.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85020473) 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 in 7 ways as a sum of consecutive naturals, for example, 103274 + ... + 104093.

It is an arithmetic number, because the mean of its divisors is an integer number (9798138).

Almost surely, 2^85020470 is an apocalyptic number.

85020470 is a deficient number, since it is larger than the sum of its proper divisors (71749738).

85020470 is a wasteful number, since it uses less digits than its factorization.

85020470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207415.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 85020470 is about 9220.6545320818. The cubic root of 85020470 is about 439.7182597175.

The spelling of 85020470 in words is "eighty-five million, twenty thousand, four hundred seventy".