85257834 has 16 divisors (see below), whose sum is σ = 170916480. Its totient is φ = 28352480.

The previous prime is 85257811. The next prime is 85257841. The reversal of 85257834 is 43875258.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13899 + ... + 19070.

It is an arithmetic number, because the mean of its divisors is an integer number (10682280).

Almost surely, 2^85257834 is an apocalyptic number.

85257834 is an abundant number, since it is smaller than the sum of its proper divisors (85658646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85257834 is a wasteful number, since it uses less digits than its factorization.

85257834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33405.

The product of its digits is 268800, while the sum is 42.

The square root of 85257834 is about 9233.5168814488. The cubic root of 85257834 is about 440.1270879445.

The spelling of 85257834 in words is "eighty-five million, two hundred fifty-seven thousand, eight hundred thirty-four".