84133947 has 8 divisors (see below), whose sum is σ = 112234320. Its totient is φ = 56061440.

The previous prime is 84133937. The next prime is 84133961. The reversal of 84133947 is 74933148.

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

It is a cyclic number.

It is not a de Polignac number, because 84133947 - 2¹⁴ = 84117563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84133937) 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, 1579 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (14029290).

Almost surely, 2^84133947 is an apocalyptic number.

84133947 is a deficient number, since it is larger than the sum of its proper divisors (28100373).

84133947 is a wasteful number, since it uses less digits than its factorization.

84133947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13933.

The product of its digits is 72576, while the sum is 39.

The square root of 84133947 is about 9172.4558870566. The cubic root of 84133947 is about 438.1845774471.

The spelling of 84133947 in words is "eighty-four million, one hundred thirty-three thousand, nine hundred forty-seven".