39885953 has 2 divisors, whose sum is σ = 39885954. Its totient is φ = 39885952.

The previous prime is 39885941. The next prime is 39886013. The reversal of 39885953 is 35958893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21464689 + 18421264 = 4633^2 + 4292^2 .

It is a cyclic number.

It is not a de Polignac number, because 39885953 - 2¹⁸ = 39623809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39885253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19942976 + 19942977.

It is an arithmetic number, because the mean of its divisors is an integer number (19942977).

Almost surely, 2^39885953 is an apocalyptic number.

It is an amenable number.

39885953 is a deficient number, since it is larger than the sum of its proper divisors (1).

39885953 is an equidigital number, since it uses as much as digits as its factorization.

39885953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The square root of 39885953 is about 6315.5326774548. The cubic root of 39885953 is about 341.6698505619.

The spelling of 39885953 in words is "thirty-nine million, eight hundred eighty-five thousand, nine hundred fifty-three".