39946853 has 2 divisors, whose sum is σ = 39946854. Its totient is φ = 39946852.

The previous prime is 39946783. The next prime is 39946859. The reversal of 39946853 is 35864993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 13300609 = 5162^2 + 3647^2 .

It is an emirp because it is prime and its reverse (35864993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39946853 - 2¹⁴ = 39930469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39946798 and 39946807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39946859) 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, 19973426 + 19973427.

It is an arithmetic number, because the mean of its divisors is an integer number (19973427).

Almost surely, 2^39946853 is an apocalyptic number.

It is an amenable number.

39946853 is a deficient number, since it is larger than the sum of its proper divisors (1).

39946853 is an equidigital number, since it uses as much as digits as its factorization.

39946853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The square root of 39946853 is about 6320.3522844854. The cubic root of 39946853 is about 341.8436553830.

The spelling of 39946853 in words is "thirty-nine million, nine hundred forty-six thousand, eight hundred fifty-three".