86779392 has 120 divisors (see below), whose sum is σ = 269163576. Its totient is φ = 24772608.

The previous prime is 86779351. The next prime is 86779409. The reversal of 86779392 is 29397768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74688 + ... + 75840.

Almost surely, 2^86779392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86779392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134581788).

86779392 is an abundant number, since it is smaller than the sum of its proper divisors (182384184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86779392 is a wasteful number, since it uses less digits than its factorization.

86779392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1165 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 86779392 is about 9315.5457167039. The cubic root of 86779392 is about 442.7299146736.

The spelling of 86779392 in words is "eighty-six million, seven hundred seventy-nine thousand, three hundred ninety-two".