86549647 has 6 divisors (see below), whose sum is σ = 88713824. Its totient is φ = 84437040.

The previous prime is 86549641. The next prime is 86549653. The reversal of 86549647 is 74694568.

It is an interprime number because it is at equal distance from previous prime (86549641) and next prime (86549653).

It is not a de Polignac number, because 86549647 - 2¹¹ = 86547599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86549647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86549641) 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, 24063 + ... + 27424.

Almost surely, 2^86549647 is an apocalyptic number.

86549647 is a deficient number, since it is larger than the sum of its proper divisors (2164177).

86549647 is an equidigital number, since it uses as much as digits as its factorization.

86549647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51569 (or 51528 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 86549647 is about 9303.2062752580. The cubic root of 86549647 is about 442.3388660760.

The spelling of 86549647 in words is "eighty-six million, five hundred forty-nine thousand, six hundred forty-seven".