86647338 has 12 divisors (see below), whose sum is σ = 187735938. Its totient is φ = 28882440.

The previous prime is 86647333. The next prime is 86647339. The reversal of 86647338 is 83374668.

It can be written as a sum of positive squares in only one way, i.e., 64208169 + 22439169 = 8013^2 + 4737^2 .

It is a super-2 number, since 2×86647338² = 15015522364972488, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86647293 and 86647302.

It is not an unprimeable number, because it can be changed into a prime (86647333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2406853 + ... + 2406888.

Almost surely, 2^86647338 is an apocalyptic number.

86647338 is an abundant number, since it is smaller than the sum of its proper divisors (101088600).

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

86647338 is a wasteful number, since it uses less digits than its factorization.

86647338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813749 (or 4813746 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 86647338 is about 9308.4551886981. The cubic root of 86647338 is about 442.5052302360.

The spelling of 86647338 in words is "eighty-six million, six hundred forty-seven thousand, three hundred thirty-eight".