40687727 has 2 divisors, whose sum is σ = 40687728. Its totient is φ = 40687726.

The previous prime is 40687687. The next prime is 40687733. The reversal of 40687727 is 72778604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40687727 - 2¹² = 40683631 is a prime.

It is a super-2 number, since 2×40687727² = 3310982256853058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40687027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20343863 + 20343864.

It is an arithmetic number, because the mean of its divisors is an integer number (20343864).

Almost surely, 2^40687727 is an apocalyptic number.

40687727 is a deficient number, since it is larger than the sum of its proper divisors (1).

40687727 is an equidigital number, since it uses as much as digits as its factorization.

40687727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 40687727 is about 6378.6932047246. The cubic root of 40687727 is about 343.9440569520.

It can be divided in two parts, 40687 and 727, that added together give a palindrome (41414).

The spelling of 40687727 in words is "forty million, six hundred eighty-seven thousand, seven hundred twenty-seven".