40085767 has 2 divisors, whose sum is σ = 40085768. Its totient is φ = 40085766.

The previous prime is 40085753. The next prime is 40085807. The reversal of 40085767 is 76758004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40085767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40085707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20042883 + 20042884.

It is an arithmetic number, because the mean of its divisors is an integer number (20042884).

Almost surely, 2^40085767 is an apocalyptic number.

40085767 is a deficient number, since it is larger than the sum of its proper divisors (1).

40085767 is an equidigital number, since it uses as much as digits as its factorization.

40085767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 40085767 is about 6331.3321662980. The cubic root of 40085767 is about 342.2394473528.

The spelling of 40085767 in words is "forty million, eighty-five thousand, seven hundred sixty-seven".