85723785 has 48 divisors (see below), whose sum is σ = 177292800. Its totient is φ = 39184992.

The previous prime is 85723751. The next prime is 85723787. The reversal of 85723785 is 58732758.

85723785 is a `hidden beast` number, since 8 + 572 + 3 + 78 + 5 = 666.

It is not a de Polignac number, because 85723785 - 2⁷ = 85723657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 85723785.

It is not an unprimeable number, because it can be changed into a prime (85723787) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (3693600).

Almost surely, 2^85723785 is an apocalyptic number.

It is an amenable number.

85723785 is an abundant number, since it is smaller than the sum of its proper divisors (91569015).

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

85723785 is a wasteful number, since it uses less digits than its factorization.

85723785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987 (or 12974 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 85723785 is about 9258.7140035752. The cubic root of 85723785 is about 440.9274256990.

It can be divided in two parts, 857 and 23785, that added together give a palindrome (24642).

The spelling of 85723785 in words is "eighty-five million, seven hundred twenty-three thousand, seven hundred eighty-five".