86480781 has 8 divisors (see below), whose sum is σ = 116042784. Its totient is φ = 57286320.

The previous prime is 86480773. The next prime is 86480827. The reversal of 86480781 is 18708468.

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

It is not a de Polignac number, because 86480781 - 2³ = 86480773 is a prime.

It is a super-2 number, since 2×86480781² = 14957850964739922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86480711) 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, 91335 + ... + 92276.

It is an arithmetic number, because the mean of its divisors is an integer number (14505348).

Almost surely, 2^86480781 is an apocalyptic number.

It is an amenable number.

86480781 is a deficient number, since it is larger than the sum of its proper divisors (29562003).

86480781 is a wasteful number, since it uses less digits than its factorization.

86480781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183771.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 86480781 is about 9299.5043416303. The cubic root of 86480781 is about 442.2215145814.

The spelling of 86480781 in words is "eighty-six million, four hundred eighty thousand, seven hundred eighty-one".