40935857 has 2 divisors, whose sum is σ = 40935858. Its totient is φ = 40935856.

The previous prime is 40935833. The next prime is 40935859. The reversal of 40935857 is 75853904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30019441 + 10916416 = 5479^2 + 3304^2 .

It is a cyclic number.

It is not a de Polignac number, because 40935857 - 2¹⁰ = 40934833 is a prime.

Together with 40935859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40935859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20467928 + 20467929.

It is an arithmetic number, because the mean of its divisors is an integer number (20467929).

Almost surely, 2^40935857 is an apocalyptic number.

It is an amenable number.

40935857 is a deficient number, since it is larger than the sum of its proper divisors (1).

40935857 is an equidigital number, since it uses as much as digits as its factorization.

40935857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 40935857 is about 6398.1135501021. The cubic root of 40935857 is about 344.6418098586.

The spelling of 40935857 in words is "forty million, nine hundred thirty-five thousand, eight hundred fifty-seven".