42680787 has 4 divisors (see below), whose sum is σ = 56907720. Its totient is φ = 28453856.

The previous prime is 42680773. The next prime is 42680789. The reversal of 42680787 is 78708624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42680787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42680789) 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, 7113462 + ... + 7113467.

It is an arithmetic number, because the mean of its divisors is an integer number (14226930).

Almost surely, 2^42680787 is an apocalyptic number.

42680787 is a deficient number, since it is larger than the sum of its proper divisors (14226933).

42680787 is a wasteful number, since it uses less digits than its factorization.

42680787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14226932.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 42680787 is about 6533.0534208745. The cubic root of 42680787 is about 349.4707292909.

The spelling of 42680787 in words is "forty-two million, six hundred eighty thousand, seven hundred eighty-seven".