40771811 has 2 divisors, whose sum is σ = 40771812. Its totient is φ = 40771810.

The previous prime is 40771807. The next prime is 40771813. The reversal of 40771811 is 11817704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40771811 - 2² = 40771807 is a prime.

Together with 40771813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40771813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20385905 + 20385906.

It is an arithmetic number, because the mean of its divisors is an integer number (20385906).

Almost surely, 2^40771811 is an apocalyptic number.

40771811 is a deficient number, since it is larger than the sum of its proper divisors (1).

40771811 is an equidigital number, since it uses as much as digits as its factorization.

40771811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 40771811 is about 6385.2808082339. The cubic root of 40771811 is about 344.1808219849.

The spelling of 40771811 in words is "forty million, seven hundred seventy-one thousand, eight hundred eleven".