42804907 has 4 divisors (see below), whose sum is σ = 42827400. Its totient is φ = 42782416.

The previous prime is 42804901. The next prime is 42804919. The reversal of 42804907 is 70940824.

It is a happy number.

42804907 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 42804907 - 2¹⁹ = 42280619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42804901) 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, 8098 + ... + 12295.

It is an arithmetic number, because the mean of its divisors is an integer number (10706850).

Almost surely, 2^42804907 is an apocalyptic number.

42804907 is a deficient number, since it is larger than the sum of its proper divisors (22493).

42804907 is a wasteful number, since it uses less digits than its factorization.

42804907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22492.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42804907 is about 6542.5459111878. The cubic root of 42804907 is about 349.8091667177.

The spelling of 42804907 in words is "forty-two million, eight hundred four thousand, nine hundred seven".