42852857 has 2 divisors, whose sum is σ = 42852858. Its totient is φ = 42852856.

The previous prime is 42852853. The next prime is 42852871. The reversal of 42852857 is 75825824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 1585081 = 6424^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 42852857 - 2² = 42852853 is a prime.

It is not a weakly prime, because it can be changed into another prime (42852853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21426428 + 21426429.

It is an arithmetic number, because the mean of its divisors is an integer number (21426429).

Almost surely, 2^42852857 is an apocalyptic number.

It is an amenable number.

42852857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42852857 is an equidigital number, since it uses as much as digits as its factorization.

42852857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 179200, while the sum is 41.

The square root of 42852857 is about 6546.2093611494. The cubic root of 42852857 is about 349.9397365631.

The spelling of 42852857 in words is "forty-two million, eight hundred fifty-two thousand, eight hundred fifty-seven".