84670 has 8 divisors (see below), whose sum is σ = 152424. Its totient is φ = 33864.

The previous prime is 84659. The next prime is 84673. The reversal of 84670 is 7648.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4224 + ... + 4243.

It is an arithmetic number, because the mean of its divisors is an integer number (19053).

2⁸⁴⁶⁷⁰ is an apocalyptic number.

84670 is a deficient number, since it is larger than the sum of its proper divisors (67754).

84670 is a wasteful number, since it uses less digits than its factorization.

84670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8474.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 84670 is about 290.9810990425. The cubic root of 84670 is about 43.9113227782.

It can be divided in two parts, 84 and 670, that multiplied together give a triangular number (56280 = T₃₃₅).

The spelling of 84670 in words is "eighty-four thousand, six hundred seventy".