Search a number
8979 = 34173
BaseRepresentation
bin10001100010011
3110022120
42030103
5241404
6105323
735115
oct21423
913276
108979
116823
125243
134119
1433b5
1529d9
hex2313

8979 has 8 divisors (see below), whose sum is σ = 12432. Its totient is φ = 5760.

The previous prime is 8971. The next prime is 8999. The reversal of 8979 is 9798.

8979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8979 - 23 = 8971 is a prime.

It is a d-powerful number, because it can be written as 8 + 74 + 9 + 94 .

8979 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8971) 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, 87 + ... + 159.

It is an arithmetic number, because the mean of its divisors is an integer number (1554).

28979 is an apocalyptic number.

8979 is a deficient number, since it is larger than the sum of its proper divisors (3453).

8979 is a wasteful number, since it uses less digits than its factorization.

8979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117.

The product of its digits is 4536, while the sum is 33.

The square root of 8979 is about 94.7575854483. The cubic root of 8979 is about 20.7846472012.

The spelling of 8979 in words is "eight thousand, nine hundred seventy-nine".

Divisors: 1 3 41 73 123 219 2993 8979