40704947 has 2 divisors, whose sum is σ = 40704948. Its totient is φ = 40704946.

The previous prime is 40704887. The next prime is 40704949. The reversal of 40704947 is 74940704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40704947 - 2⁸ = 40704691 is a prime.

Together with 40704949, 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 (40704949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20352473 + 20352474.

It is an arithmetic number, because the mean of its divisors is an integer number (20352474).

Almost surely, 2^40704947 is an apocalyptic number.

40704947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40704947 is an equidigital number, since it uses as much as digits as its factorization.

40704947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 40704947 is about 6380.0428681945. The cubic root of 40704947 is about 343.9925718380.

The spelling of 40704947 in words is "forty million, seven hundred four thousand, nine hundred forty-seven".