42670547 has 4 divisors (see below), whose sum is σ = 42764376. Its totient is φ = 42576720.

The previous prime is 42670519. The next prime is 42670553. The reversal of 42670547 is 74507624.

42670547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42670547 - 2⁶ = 42670483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42670567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46229 + ... + 47142.

It is an arithmetic number, because the mean of its divisors is an integer number (10691094).

Almost surely, 2^42670547 is an apocalyptic number.

42670547 is a deficient number, since it is larger than the sum of its proper divisors (93829).

42670547 is an equidigital number, since it uses as much as digits as its factorization.

42670547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93828.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 42670547 is about 6532.2696668157. The cubic root of 42670547 is about 349.4427786465.

The spelling of 42670547 in words is "forty-two million, six hundred seventy thousand, five hundred forty-seven".