40855723 has 2 divisors, whose sum is σ = 40855724. Its totient is φ = 40855722.

The previous prime is 40855699. The next prime is 40855741. The reversal of 40855723 is 32755804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40855723 - 2⁹ = 40855211 is a prime.

It is not a weakly prime, because it can be changed into another prime (40855223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20427861 + 20427862.

It is an arithmetic number, because the mean of its divisors is an integer number (20427862).

Almost surely, 2^40855723 is an apocalyptic number.

40855723 is a deficient number, since it is larger than the sum of its proper divisors (1).

40855723 is an equidigital number, since it uses as much as digits as its factorization.

40855723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 40855723 is about 6391.8481677837. The cubic root of 40855723 is about 344.4167783961.

The spelling of 40855723 in words is "forty million, eight hundred fifty-five thousand, seven hundred twenty-three".