85757638 has 8 divisors (see below), whose sum is σ = 132113232. Its totient is φ = 41719896.

The previous prime is 85757629. The next prime is 85757677. The reversal of 85757638 is 83675758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 85757591 and 85757600.

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 3 ways as a sum of consecutive naturals, for example, 579370 + ... + 579517.

It is an arithmetic number, because the mean of its divisors is an integer number (16514154).

Almost surely, 2^85757638 is an apocalyptic number.

85757638 is a deficient number, since it is larger than the sum of its proper divisors (46355594).

85757638 is a wasteful number, since it uses less digits than its factorization.

85757638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158926.

The product of its digits is 1411200, while the sum is 49.

The square root of 85757638 is about 9260.5419927777. The cubic root of 85757638 is about 440.9854599683.

The spelling of 85757638 in words is "eighty-five million, seven hundred fifty-seven thousand, six hundred thirty-eight".