42707 has 4 divisors (see below), whose sum is σ = 48816. Its totient is φ = 36600.

The previous prime is 42703. The next prime is 42709. The reversal of 42707 is 70724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42707 - 2² = 42703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42701) 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, 3044 + ... + 3057.

It is an arithmetic number, because the mean of its divisors is an integer number (12204).

2⁴²⁷⁰⁷ is an apocalyptic number.

42707 is a deficient number, since it is larger than the sum of its proper divisors (6109).

42707 is an equidigital number, since it uses as much as digits as its factorization.

42707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 42707 is about 206.6567201908. The cubic root of 42707 is about 34.9542258755.

It can be divided in two parts, 4270 and 7, that multiplied together give a triangular number (29890 = T₂₄₄).

The spelling of 42707 in words is "forty-two thousand, seven hundred seven", and thus it is an iban number.