40711709 has 2 divisors, whose sum is σ = 40711710. Its totient is φ = 40711708.

The previous prime is 40711673. The next prime is 40711733. The reversal of 40711709 is 90711704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38167684 + 2544025 = 6178^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 40711709 - 2⁸ = 40711453 is a prime.

It is equal to p_2474273 and since 40711709 and 2474273 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40711799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20355854 + 20355855.

It is an arithmetic number, because the mean of its divisors is an integer number (20355855).

Almost surely, 2^40711709 is an apocalyptic number.

It is an amenable number.

40711709 is a deficient number, since it is larger than the sum of its proper divisors (1).

40711709 is an equidigital number, since it uses as much as digits as its factorization.

40711709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 40711709 is about 6380.5727799313. The cubic root of 40711709 is about 344.0116190640.

The spelling of 40711709 in words is "forty million, seven hundred eleven thousand, seven hundred nine".