40782727 has 2 divisors, whose sum is σ = 40782728. Its totient is φ = 40782726.

The previous prime is 40782719. The next prime is 40782761. The reversal of 40782727 is 72728704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40782727 - 2³ = 40782719 is a prime.

It is equal to p_2478394 and since 40782727 and 2478394 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 (40782767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20391363 + 20391364.

It is an arithmetic number, because the mean of its divisors is an integer number (20391364).

Almost surely, 2^40782727 is an apocalyptic number.

40782727 is a deficient number, since it is larger than the sum of its proper divisors (1).

40782727 is an equidigital number, since it uses as much as digits as its factorization.

40782727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 40782727 is about 6386.1355294106. The cubic root of 40782727 is about 344.2115355466.

The spelling of 40782727 in words is "forty million, seven hundred eighty-two thousand, seven hundred twenty-seven".