85909449 has 32 divisors (see below), whose sum is σ = 127059840. Its totient is φ = 51397632.

The previous prime is 85909441. The next prime is 85909451. The reversal of 85909449 is 94490958.

It is not a de Polignac number, because 85909449 - 2³ = 85909441 is a prime.

85909449 is a modest number, since divided by 9449 gives 8590 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 85909398 and 85909407.

It is not an unprimeable number, because it can be changed into a prime (85909441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99582 + ... + 100440.

It is an arithmetic number, because the mean of its divisors is an integer number (3970620).

Almost surely, 2^85909449 is an apocalyptic number.

It is an amenable number.

85909449 is a deficient number, since it is larger than the sum of its proper divisors (41150391).

85909449 is a wasteful number, since it uses less digits than its factorization.

85909449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 85909449 is about 9268.7350269603. The cubic root of 85909449 is about 441.2455222416.

The spelling of 85909449 in words is "eighty-five million, nine hundred nine thousand, four hundred forty-nine".