39980827 has 2 divisors, whose sum is σ = 39980828. Its totient is φ = 39980826.

The previous prime is 39980813. The next prime is 39980833. The reversal of 39980827 is 72808993.

It is a strong prime.

It is an emirp because it is prime and its reverse (72808993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39980827 - 2¹¹ = 39978779 is a prime.

It is not a weakly prime, because it can be changed into another prime (39980887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19990413 + 19990414.

It is an arithmetic number, because the mean of its divisors is an integer number (19990414).

Almost surely, 2^39980827 is an apocalyptic number.

39980827 is a deficient number, since it is larger than the sum of its proper divisors (1).

39980827 is an equidigital number, since it uses as much as digits as its factorization.

39980827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 39980827 is about 6323.0393799185. The cubic root of 39980827 is about 341.9405383212.

The spelling of 39980827 in words is "thirty-nine million, nine hundred eighty thousand, eight hundred twenty-seven".