40721027 has 2 divisors, whose sum is σ = 40721028. Its totient is φ = 40721026.

The previous prime is 40720997. The next prime is 40721029. The reversal of 40721027 is 72012704.

40721027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40721027 - 2⁶ = 40720963 is a prime.

Together with 40721029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40720993 and 40721011.

It is not a weakly prime, because it can be changed into another prime (40721029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20360513 + 20360514.

It is an arithmetic number, because the mean of its divisors is an integer number (20360514).

Almost surely, 2^40721027 is an apocalyptic number.

40721027 is a deficient number, since it is larger than the sum of its proper divisors (1).

40721027 is an equidigital number, since it uses as much as digits as its factorization.

40721027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 40721027 is about 6381.3029233848. The cubic root of 40721027 is about 344.0378625848.

The spelling of 40721027 in words is "forty million, seven hundred twenty-one thousand, twenty-seven".