40695871 has 2 divisors, whose sum is σ = 40695872. Its totient is φ = 40695870.

The previous prime is 40695869. The next prime is 40695911. The reversal of 40695871 is 17859604.

It is an a-pointer prime, because the next prime (40695911) can be obtained adding 40695871 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40695871 - 2¹ = 40695869 is a prime.

Together with 40695869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40695271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20347935 + 20347936.

It is an arithmetic number, because the mean of its divisors is an integer number (20347936).

Almost surely, 2^40695871 is an apocalyptic number.

40695871 is a deficient number, since it is larger than the sum of its proper divisors (1).

40695871 is an equidigital number, since it uses as much as digits as its factorization.

40695871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 40695871 is about 6379.3315480542. The cubic root of 40695871 is about 343.9670032123.

The spelling of 40695871 in words is "forty million, six hundred ninety-five thousand, eight hundred seventy-one".