39630853 has 2 divisors, whose sum is σ = 39630854. Its totient is φ = 39630852.

The previous prime is 39630847. The next prime is 39630869. The reversal of 39630853 is 35803693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35497764 + 4133089 = 5958^2 + 2033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39630853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39630883) 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, 19815426 + 19815427.

It is an arithmetic number, because the mean of its divisors is an integer number (19815427).

Almost surely, 2^39630853 is an apocalyptic number.

It is an amenable number.

39630853 is a deficient number, since it is larger than the sum of its proper divisors (1).

39630853 is an equidigital number, since it uses as much as digits as its factorization.

39630853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 39630853 is about 6295.3040434915. The cubic root of 39630853 is about 340.9398821330.

The spelling of 39630853 in words is "thirty-nine million, six hundred thirty thousand, eight hundred fifty-three".