85705408 has 14 divisors (see below), whose sum is σ = 170071796. Its totient is φ = 42852672.

The previous prime is 85705391. The next prime is 85705423. The reversal of 85705408 is 80450758.

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 as a sum of consecutive naturals, namely, 669510 + ... + 669637.

Almost surely, 2^85705408 is an apocalyptic number.

It is an amenable number.

85705408 is a deficient number, since it is larger than the sum of its proper divisors (84366388).

85705408 is a wasteful number, since it uses less digits than its factorization.

85705408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339159 (or 1339149 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 85705408 is about 9257.7215339413. The cubic root of 85705408 is about 440.8959155707.

The spelling of 85705408 in words is "eighty-five million, seven hundred five thousand, four hundred eight".