86352779 has 4 divisors (see below), whose sum is σ = 86448480. Its totient is φ = 86257080.

The previous prime is 86352769. The next prime is 86352781. The reversal of 86352779 is 97725368.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86352779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86352719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46484 + ... + 48305.

It is an arithmetic number, because the mean of its divisors is an integer number (21612120).

Almost surely, 2^86352779 is an apocalyptic number.

86352779 is a deficient number, since it is larger than the sum of its proper divisors (95701).

86352779 is an equidigital number, since it uses as much as digits as its factorization.

86352779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95700.

The product of its digits is 635040, while the sum is 47.

The square root of 86352779 is about 9292.6195983695. The cubic root of 86352779 is about 442.0032264324.

The spelling of 86352779 in words is "eighty-six million, three hundred fifty-two thousand, seven hundred seventy-nine".