40871777 has 2 divisors, whose sum is σ = 40871778. Its totient is φ = 40871776.

The previous prime is 40871767. The next prime is 40871783. The reversal of 40871777 is 77717804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40844881 + 26896 = 6391^2 + 164^2 .

It is a cyclic number.

It is not a de Polignac number, because 40871777 - 2¹⁸ = 40609633 is a prime.

It is not a weakly prime, because it can be changed into another prime (40871707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20435888 + 20435889.

It is an arithmetic number, because the mean of its divisors is an integer number (20435889).

Almost surely, 2^40871777 is an apocalyptic number.

It is an amenable number.

40871777 is a deficient number, since it is larger than the sum of its proper divisors (1).

40871777 is an equidigital number, since it uses as much as digits as its factorization.

40871777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76832, while the sum is 41.

The square root of 40871777 is about 6393.1038627571. The cubic root of 40871777 is about 344.4618846259.

The spelling of 40871777 in words is "forty million, eight hundred seventy-one thousand, seven hundred seventy-seven".