40500947 has 2 divisors, whose sum is σ = 40500948. Its totient is φ = 40500946.

The previous prime is 40500937. The next prime is 40500949. The reversal of 40500947 is 74900504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40500947 - 2⁴ = 40500931 is a prime.

Together with 40500949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40500949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20250473 + 20250474.

It is an arithmetic number, because the mean of its divisors is an integer number (20250474).

Almost surely, 2^40500947 is an apocalyptic number.

40500947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40500947 is an equidigital number, since it uses as much as digits as its factorization.

40500947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 40500947 is about 6364.0354335909. The cubic root of 40500947 is about 343.4169493979.

The spelling of 40500947 in words is "forty million, five hundred thousand, nine hundred forty-seven".