85039851 has 24 divisors (see below), whose sum is σ = 126230160. Its totient is φ = 50621760.

The previous prime is 85039849. The next prime is 85039883. The reversal of 85039851 is 15893058.

It is not a de Polignac number, because 85039851 - 2¹ = 85039849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (85039811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36345 + ... + 38613.

It is an arithmetic number, because the mean of its divisors is an integer number (5259590).

Almost surely, 2^85039851 is an apocalyptic number.

85039851 is a deficient number, since it is larger than the sum of its proper divisors (41190309).

85039851 is a wasteful number, since it uses less digits than its factorization.

85039851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347 (or 2316 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 85039851 is about 9221.7054279564. The cubic root of 85039851 is about 439.7516694447.

The spelling of 85039851 in words is "eighty-five million, thirty-nine thousand, eight hundred fifty-one".