42866507 has 4 divisors (see below), whose sum is σ = 42887640. Its totient is φ = 42845376.

The previous prime is 42866501. The next prime is 42866513. The reversal of 42866507 is 70566824.

It is a happy number.

42866507 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 an interprime number because it is at equal distance from previous prime (42866501) and next prime (42866513).

It is a cyclic number.

It is not a de Polignac number, because 42866507 - 2⁸ = 42866251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42866501) 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, 7157 + ... + 11702.

It is an arithmetic number, because the mean of its divisors is an integer number (10721910).

Almost surely, 2^42866507 is an apocalyptic number.

42866507 is a deficient number, since it is larger than the sum of its proper divisors (21133).

42866507 is a wasteful number, since it uses less digits than its factorization.

42866507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21132.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 42866507 is about 6547.2518662413. The cubic root of 42866507 is about 349.9768882698.

The spelling of 42866507 in words is "forty-two million, eight hundred sixty-six thousand, five hundred seven".