85538887 has 8 divisors (see below), whose sum is σ = 98937216. Its totient is φ = 72435192.

The previous prime is 85538851. The next prime is 85538899. The reversal of 85538887 is 78883558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85538887 - 2⁷ = 85538759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85538807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73033 + ... + 74194.

It is an arithmetic number, because the mean of its divisors is an integer number (12367152).

Almost surely, 2^85538887 is an apocalyptic number.

85538887 is a deficient number, since it is larger than the sum of its proper divisors (13398329).

85538887 is a wasteful number, since it uses less digits than its factorization.

85538887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147317.

The product of its digits is 2150400, while the sum is 52.

The square root of 85538887 is about 9248.7235335478. The cubic root of 85538887 is about 440.6101847508.

The spelling of 85538887 in words is "eighty-five million, five hundred thirty-eight thousand, eight hundred eighty-seven".