86944947 has 8 divisors (see below), whose sum is σ = 117827280. Its totient is φ = 57012960.

The previous prime is 86944943. The next prime is 86944961. The reversal of 86944947 is 74944968.

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

It is not a de Polignac number, because 86944947 - 2² = 86944943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86944947.

It is not an unprimeable number, because it can be changed into a prime (86944943) 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, 237372 + ... + 237737.

It is an arithmetic number, because the mean of its divisors is an integer number (14728410).

Almost surely, 2^86944947 is an apocalyptic number.

86944947 is a deficient number, since it is larger than the sum of its proper divisors (30882333).

86944947 is a wasteful number, since it uses less digits than its factorization.

86944947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475173.

The product of its digits is 1741824, while the sum is 51.

The square root of 86944947 is about 9324.4274355051. The cubic root of 86944947 is about 443.0112779020.

The spelling of 86944947 in words is "eighty-six million, nine hundred forty-four thousand, nine hundred forty-seven".