42350857 has 2 divisors, whose sum is σ = 42350858. Its totient is φ = 42350856.

The previous prime is 42350839. The next prime is 42350881. The reversal of 42350857 is 75805324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42302016 + 48841 = 6504^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 42350857 - 2¹¹ = 42348809 is a prime.

It is not a weakly prime, because it can be changed into another prime (42350837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21175428 + 21175429.

It is an arithmetic number, because the mean of its divisors is an integer number (21175429).

Almost surely, 2^42350857 is an apocalyptic number.

It is an amenable number.

42350857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42350857 is an equidigital number, since it uses as much as digits as its factorization.

42350857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 42350857 is about 6507.7536062761. The cubic root of 42350857 is about 348.5679088647.

The spelling of 42350857 in words is "forty-two million, three hundred fifty thousand, eight hundred fifty-seven".