85438763 has 4 divisors (see below), whose sum is σ = 89935560. Its totient is φ = 80941968.

The previous prime is 85438747. The next prime is 85438781. The reversal of 85438763 is 36783458.

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

It is a cyclic number.

It is not a de Polignac number, because 85438763 - 2⁴ = 85438747 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85438723) 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, 2248370 + ... + 2248407.

It is an arithmetic number, because the mean of its divisors is an integer number (22483890).

Almost surely, 2^85438763 is an apocalyptic number.

85438763 is a deficient number, since it is larger than the sum of its proper divisors (4496797).

85438763 is a wasteful number, since it uses less digits than its factorization.

85438763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496796.

The product of its digits is 483840, while the sum is 44.

The square root of 85438763 is about 9243.3090936093. The cubic root of 85438763 is about 440.4382049668.

Adding to 85438763 its reverse (36783458), we get a palindrome (122222221).

The spelling of 85438763 in words is "eighty-five million, four hundred thirty-eight thousand, seven hundred sixty-three".