85827810 has 32 divisors (see below), whose sum is σ = 208474560. Its totient is φ = 22611008.

The previous prime is 85827787. The next prime is 85827811. The reversal of 85827810 is 1872858.

It is a super-2 number, since 2×85827810² = 14732825938792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85827811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14745 + ... + 19724.

It is an arithmetic number, because the mean of its divisors is an integer number (6514830).

Almost surely, 2^85827810 is an apocalyptic number.

85827810 is an abundant number, since it is smaller than the sum of its proper divisors (122646750).

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

85827810 is a wasteful number, since it uses less digits than its factorization.

85827810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34562.

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 85827810 is about 9264.3299811697. The cubic root of 85827810 is about 441.1057073537.

The spelling of 85827810 in words is "eighty-five million, eight hundred twenty-seven thousand, eight hundred ten".