85388787 has 24 divisors (see below), whose sum is σ = 138897408. Its totient is φ = 50079600.

The previous prime is 85388761. The next prime is 85388803. The reversal of 85388787 is 78788358.

It is not a de Polignac number, because 85388787 - 2⁷ = 85388659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85388087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10843 + ... + 16980.

It is an arithmetic number, because the mean of its divisors is an integer number (5787392).

Almost surely, 2^85388787 is an apocalyptic number.

85388787 is a deficient number, since it is larger than the sum of its proper divisors (53508621).

85388787 is a wasteful number, since it uses less digits than its factorization.

85388787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27871 (or 27868 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 85388787 is about 9240.6053373142. The cubic root of 85388787 is about 440.3523125214.

The spelling of 85388787 in words is "eighty-five million, three hundred eighty-eight thousand, seven hundred eighty-seven".