85122787 has 8 divisors (see below), whose sum is σ = 86676480. Its totient is φ = 83583360.

The previous prime is 85122749. The next prime is 85122797. The reversal of 85122787 is 78722158.

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 85122787 - 2¹⁹ = 84598499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85122797) 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, 8862 + ... + 15772.

It is an arithmetic number, because the mean of its divisors is an integer number (10834560).

Almost surely, 2^85122787 is an apocalyptic number.

85122787 is a deficient number, since it is larger than the sum of its proper divisors (1553693).

85122787 is a wasteful number, since it uses less digits than its factorization.

85122787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its digits is 62720, while the sum is 40.

The square root of 85122787 is about 9226.2011142181. The cubic root of 85122787 is about 439.8945804608.

The spelling of 85122787 in words is "eighty-five million, one hundred twenty-two thousand, seven hundred eighty-seven".