Search a number
-
+
3980879 = 75571021
BaseRepresentation
bin1111001011111001001111
321111020201222
433023321033
52004342004
6221153555
745560030
oct17137117
97436658
103980879
112279991
1213bb8bb
13a94c66
14758a87
155397be
hex3cbe4f

3980879 has 8 divisors (see below), whose sum is σ = 4562208. Its totient is φ = 3402720.

The previous prime is 3980857. The next prime is 3980887. The reversal of 3980879 is 9780893.

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

It is a cyclic number.

It is not a de Polignac number, because 3980879 - 212 = 3976783 is a prime.

It is a super-2 number, since 2×39808792 = 31694795225282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980819) 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, 3389 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (570276).

Almost surely, 23980879 is an apocalyptic number.

3980879 is a deficient number, since it is larger than the sum of its proper divisors (581329).

3980879 is a wasteful number, since it uses less digits than its factorization.

3980879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 3980879 is about 1995.2140236075. The cubic root of 3980879 is about 158.4867619563.

The spelling of 3980879 in words is "three million, nine hundred eighty thousand, eight hundred seventy-nine".

Divisors: 1 7 557 1021 3899 7147 568697 3980879