85783793 has 4 divisors (see below), whose sum is σ = 86668260. Its totient is φ = 84899328.

The previous prime is 85783777. The next prime is 85783799. The reversal of 85783793 is 39738758.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65820769 + 19963024 = 8113^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 85783793 - 2⁴ = 85783777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85783799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442088 + ... + 442281.

It is an arithmetic number, because the mean of its divisors is an integer number (21667065).

Almost surely, 2^85783793 is an apocalyptic number.

It is an amenable number.

85783793 is a deficient number, since it is larger than the sum of its proper divisors (884467).

85783793 is an equidigital number, since it uses as much as digits as its factorization.

85783793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884466.

The product of its digits is 1270080, while the sum is 50.

The square root of 85783793 is about 9261.9540594844. The cubic root of 85783793 is about 441.0302870827.

The spelling of 85783793 in words is "eighty-five million, seven hundred eighty-three thousand, seven hundred ninety-three".