84955947 has 8 divisors (see below), whose sum is σ = 113456640. Its totient is φ = 56546280.

The previous prime is 84955939. The next prime is 84955957. The reversal of 84955947 is 74955948.

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

It is not a de Polignac number, because 84955947 - 2³ = 84955939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84955947.

It is not an unprimeable number, because it can be changed into a prime (84955907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20547 + ... + 24332.

It is an arithmetic number, because the mean of its divisors is an integer number (14182080).

Almost surely, 2^84955947 is an apocalyptic number.

84955947 is a deficient number, since it is larger than the sum of its proper divisors (28500693).

84955947 is a wasteful number, since it uses less digits than its factorization.

84955947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45513.

The product of its digits is 1814400, while the sum is 51.

The square root of 84955947 is about 9217.1550382968. The cubic root of 84955947 is about 439.6069958397.

Subtracting from 84955947 its reverse (74955948), we obtain a palindrome (9999999).

The spelling of 84955947 in words is "eighty-four million, nine hundred fifty-five thousand, nine hundred forty-seven".