86550789 has 8 divisors (see below), whose sum is σ = 124278112. Its totient is φ = 53262000.

The previous prime is 86550781. The next prime is 86550857. The reversal of 86550789 is 98705568.

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

It is not a de Polignac number, because 86550789 - 2³ = 86550781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86550781) 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, 1109587 + ... + 1109664.

It is an arithmetic number, because the mean of its divisors is an integer number (15534764).

Almost surely, 2^86550789 is an apocalyptic number.

It is an amenable number.

86550789 is a deficient number, since it is larger than the sum of its proper divisors (37727323).

86550789 is a wasteful number, since it uses less digits than its factorization.

86550789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219267.

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 86550789 is about 9303.2676517447. The cubic root of 86550789 is about 442.3408115827.

The spelling of 86550789 in words is "eighty-six million, five hundred fifty thousand, seven hundred eighty-nine".