40873867 has 2 divisors, whose sum is σ = 40873868. Its totient is φ = 40873866.

The previous prime is 40873853. The next prime is 40873897. The reversal of 40873867 is 76837804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40873867 - 2⁷ = 40873739 is a prime.

It is not a weakly prime, because it can be changed into another prime (40873897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20436933 + 20436934.

It is an arithmetic number, because the mean of its divisors is an integer number (20436934).

Almost surely, 2^40873867 is an apocalyptic number.

40873867 is a deficient number, since it is larger than the sum of its proper divisors (1).

40873867 is an equidigital number, since it uses as much as digits as its factorization.

40873867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 40873867 is about 6393.2673180464. The cubic root of 40873867 is about 344.4677559395.

The spelling of 40873867 in words is "forty million, eight hundred seventy-three thousand, eight hundred sixty-seven".