86993047 has 8 divisors (see below), whose sum is σ = 88426800. Its totient is φ = 85568640.

The previous prime is 86993003. The next prime is 86993083. The reversal of 86993047 is 74039968.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86993047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86992988 and 86993006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86993147) 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, 17829 + ... + 22177.

It is an arithmetic number, because the mean of its divisors is an integer number (11053350).

Almost surely, 2^86993047 is an apocalyptic number.

86993047 is a deficient number, since it is larger than the sum of its proper divisors (1433753).

86993047 is a wasteful number, since it uses less digits than its factorization.

86993047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 86993047 is about 9327.0063257189. The cubic root of 86993047 is about 443.0929576119.

The spelling of 86993047 in words is "eighty-six million, nine hundred ninety-three thousand, forty-seven".