40527709 has 2 divisors, whose sum is σ = 40527710. Its totient is φ = 40527708.

The previous prime is 40527701. The next prime is 40527763. The reversal of 40527709 is 90772504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 205209 = 6350^2 + 453^2 .

It is a cyclic number.

It is not a de Polignac number, because 40527709 - 2³ = 40527701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40527701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20263854 + 20263855.

It is an arithmetic number, because the mean of its divisors is an integer number (20263855).

Almost surely, 2^40527709 is an apocalyptic number.

It is an amenable number.

40527709 is a deficient number, since it is larger than the sum of its proper divisors (1).

40527709 is an equidigital number, since it uses as much as digits as its factorization.

40527709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 40527709 is about 6366.1376830854. The cubic root of 40527709 is about 343.4925731511.

The spelling of 40527709 in words is "forty million, five hundred twenty-seven thousand, seven hundred nine".