40791827 has 2 divisors, whose sum is σ = 40791828. Its totient is φ = 40791826.

The previous prime is 40791809. The next prime is 40791869. The reversal of 40791827 is 72819704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40791827 - 2⁶ = 40791763 is a prime.

It is not a weakly prime, because it can be changed into another prime (40791227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20395913 + 20395914.

It is an arithmetic number, because the mean of its divisors is an integer number (20395914).

Almost surely, 2^40791827 is an apocalyptic number.

40791827 is a deficient number, since it is larger than the sum of its proper divisors (1).

40791827 is an equidigital number, since it uses as much as digits as its factorization.

40791827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 40791827 is about 6386.8479706347. The cubic root of 40791827 is about 344.2371353717.

The spelling of 40791827 in words is "forty million, seven hundred ninety-one thousand, eight hundred twenty-seven".