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3937 = 31127

3937 has 4 divisors (see below), whose sum is σ = 4096. Its totient is φ = 3780.

The previous prime is 3931. The next prime is 3943. The reversal of 3937 is 7393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3931) and next prime (3943).

It is a cyclic number.

It is not a de Polignac number, because 3937 - 23 = 3929 is a prime.

It is a Duffinian number.

It is a plaindrome in base 5 and base 15.

It is a nialpdrome in base 8 and base 16.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (3931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33 + ... + 94.

It is an arithmetic number, because the mean of its divisors is an integer number (1024).

23937 is an apocalyptic number.

It is an amenable number.

3937 is a deficient number, since it is larger than the sum of its proper divisors (159).

3937 is a wasteful number, since it uses less digits than its factorization.

3937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158.

The product of its digits is 567, while the sum is 22.

The square root of 3937 is about 62.7455177682. The cubic root of 3937 is about 15.7902305680.

It can be divided in two parts, 393 and 7, that added together give a square (400 = 202).

The spelling of 3937 in words is "three thousand, nine hundred thirty-seven".

Divisors: 1 31 127 3937