42712647 has 16 divisors (see below), whose sum is σ = 58265568. Its totient is φ = 27822080.

The previous prime is 42712639. The next prime is 42712667. The reversal of 42712647 is 74621724.

It is a cyclic number.

It is not a de Polignac number, because 42712647 - 2³ = 42712639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42712667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55747 + ... + 56507.

It is an arithmetic number, because the mean of its divisors is an integer number (3641598).

Almost surely, 2^42712647 is an apocalyptic number.

42712647 is a deficient number, since it is larger than the sum of its proper divisors (15552921).

42712647 is a wasteful number, since it uses less digits than its factorization.

42712647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its digits is 18816, while the sum is 33.

The square root of 42712647 is about 6535.4913357758. The cubic root of 42712647 is about 349.5576643338.

The spelling of 42712647 in words is "forty-two million, seven hundred twelve thousand, six hundred forty-seven".