40836787 has 2 divisors, whose sum is σ = 40836788. Its totient is φ = 40836786.

The previous prime is 40836773. The next prime is 40836821. The reversal of 40836787 is 78763804.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40836787 is a prime.

It is not a weakly prime, because it can be changed into another prime (40836767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20418393 + 20418394.

It is an arithmetic number, because the mean of its divisors is an integer number (20418394).

Almost surely, 2^40836787 is an apocalyptic number.

40836787 is a deficient number, since it is larger than the sum of its proper divisors (1).

40836787 is an equidigital number, since it uses as much as digits as its factorization.

40836787 is an evil number, because the sum of its binary digits is even.

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

The square root of 40836787 is about 6390.3667343901. The cubic root of 40836787 is about 344.3635595445.

The spelling of 40836787 in words is "forty million, eight hundred thirty-six thousand, seven hundred eighty-seven".