Search a number
3959 = 37107
BaseRepresentation
bin111101110111
312102122
4331313
5111314
630155
714354
oct7567
95378
103959
112a7a
12235b
131a57
14162b
15128e
hexf77

3959 has 4 divisors (see below), whose sum is σ = 4104. Its totient is φ = 3816.

The previous prime is 3947. The next prime is 3967. The reversal of 3959 is 9593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9593 = 53181.

It is a cyclic number.

It is not a de Polignac number, because 3959 - 24 = 3943 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 15.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919) 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, 17 + ... + 90.

It is an arithmetic number, because the mean of its divisors is an integer number (1026).

23959 is an apocalyptic number.

3959 is a deficient number, since it is larger than the sum of its proper divisors (145).

3959 is a wasteful number, since it uses less digits than its factorization.

3959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144.

The product of its digits is 1215, while the sum is 26.

The square root of 3959 is about 62.9205848670. The cubic root of 3959 is about 15.8195879476.

Subtracting from 3959 its product of digits (1215), we obtain a cube (2744 = 143).

It can be divided in two parts, 395 and 9, that added together give a palindrome (404).

The spelling of 3959 in words is "three thousand, nine hundred fifty-nine".

Divisors: 1 37 107 3959