85509476 has 12 divisors (see below), whose sum is σ = 161152572. Its totient is φ = 39465888.

The previous prime is 85509449. The next prime is 85509491. The reversal of 85509476 is 67490558.

It can be written as a sum of positive squares in 2 ways, for example, as 36844900 + 48664576 = 6070^2 + 6976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822155 + ... + 822258.

It is an arithmetic number, because the mean of its divisors is an integer number (13429381).

Almost surely, 2^85509476 is an apocalyptic number.

It is an amenable number.

85509476 is a deficient number, since it is larger than the sum of its proper divisors (75643096).

85509476 is a wasteful number, since it uses less digits than its factorization.

85509476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644430 (or 1644428 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 85509476 is about 9247.1333936523. The cubic root of 85509476 is about 440.5596803463.

The spelling of 85509476 in words is "eighty-five million, five hundred nine thousand, four hundred seventy-six".