84523947 has 8 divisors (see below), whose sum is σ = 115744656. Its totient is φ = 54826272.

The previous prime is 84523927. The next prime is 84523969. The reversal of 84523947 is 74932548.

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

It is not a de Polignac number, because 84523947 - 2⁶ = 84523883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84523899 and 84523908.

It is not an unprimeable number, because it can be changed into a prime (84523927) 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, 380628 + ... + 380849.

It is an arithmetic number, because the mean of its divisors is an integer number (14468082).

Almost surely, 2^84523947 is an apocalyptic number.

84523947 is a deficient number, since it is larger than the sum of its proper divisors (31220709).

84523947 is a wasteful number, since it uses less digits than its factorization.

84523947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761517.

The product of its digits is 241920, while the sum is 42.

The square root of 84523947 is about 9193.6906082378. The cubic root of 84523947 is about 438.8605971140.

The spelling of 84523947 in words is "eighty-four million, five hundred twenty-three thousand, nine hundred forty-seven".