42760857 has 4 divisors (see below), whose sum is σ = 57014480. Its totient is φ = 28507236.

The previous prime is 42760847. The next prime is 42760901. The reversal of 42760857 is 75806724.

42760857 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42760857 - 2¹⁹ = 42236569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42760847) 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, 7126807 + ... + 7126812.

It is an arithmetic number, because the mean of its divisors is an integer number (14253620).

Almost surely, 2^42760857 is an apocalyptic number.

It is an amenable number.

42760857 is a deficient number, since it is larger than the sum of its proper divisors (14253623).

42760857 is a wasteful number, since it uses less digits than its factorization.

42760857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14253622.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 42760857 is about 6539.1786181446. The cubic root of 42760857 is about 349.6891307711.

The spelling of 42760857 in words is "forty-two million, seven hundred sixty thousand, eight hundred fifty-seven".