84847079 has 8 divisors (see below), whose sum is σ = 86972160. Its totient is φ = 82735416.

The previous prime is 84847073. The next prime is 84847123. The reversal of 84847079 is 97074848.

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

It is not a de Polignac number, because 84847079 - 2²⁰ = 83798503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84847073) 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, 10112 + ... + 16490.

It is an arithmetic number, because the mean of its divisors is an integer number (10871520).

Almost surely, 2^84847079 is an apocalyptic number.

84847079 is a deficient number, since it is larger than the sum of its proper divisors (2125081).

84847079 is a wasteful number, since it uses less digits than its factorization.

84847079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6709.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 84847079 is about 9211.2474182382. The cubic root of 84847079 is about 439.4191353703.

The spelling of 84847079 in words is "eighty-four million, eight hundred forty-seven thousand, seventy-nine".